Home / 1,296,434,430.76-1,789,079,601.74-709,723,566.76

Finding the Fourth Proportional to 1,296,434,430.76, 1,789,079,601.74 and 709,723,566.76

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Solution

The fourth proportional to 1,296,434,430.76, 1,789,079,601.74 and 709,723,566.76 is: 979,418,569.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,434,430.76 : 1,789,079,601.74 = 709,723,566.76 : x
  2. Step 2: Convert to fraction form
    1,296,434,430.76/1,789,079,601.74 = 709,723,566.76/x
  3. Step 3: Cross multiply
    1,296,434,430.76x = 1,789,079,601.74 × 709,723,566.76
  4. Step 4: Simplify right side
    1,296,434,430.76x = 1,269,751,956,164,473,088
  5. Step 5: Solve for x
    x = 1,269,751,956,164,473,088/1,296,434,430.76
  6. Step 6: Final answer
    x = 979,418,569.92

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,296,434,431.76, 1,789,079,603.12 and 709,723,567.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.