Home / 1,296,434,432.36-1,789,079,604.12-709,723,568.36

Finding the Fourth Proportional to 1,296,434,432.36, 1,789,079,604.12 and 709,723,568.36

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Solution

The fourth proportional to 1,296,434,432.36, 1,789,079,604.12 and 709,723,568.36 is: 979,418,572.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,434,432.36 : 1,789,079,604.12 = 709,723,568.36 : x
  2. Step 2: Convert to fraction form
    1,296,434,432.36/1,789,079,604.12 = 709,723,568.36/x
  3. Step 3: Cross multiply
    1,296,434,432.36x = 1,789,079,604.12 × 709,723,568.36
  4. Step 4: Simplify right side
    1,296,434,432.36x = 1,269,751,960,716,142,592
  5. Step 5: Solve for x
    x = 1,269,751,960,716,142,592/1,296,434,432.36
  6. Step 6: Final answer
    x = 979,418,572.22

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Double scale
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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.