Home / 1,296,434,442.23-1,789,079,617.71-709,723,578.23

Finding the Fourth Proportional to 1,296,434,442.23, 1,789,079,617.71 and 709,723,578.23

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Solution

The fourth proportional to 1,296,434,442.23, 1,789,079,617.71 and 709,723,578.23 is: 979,418,585.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,434,442.23 : 1,789,079,617.71 = 709,723,578.23 : x
  2. Step 2: Convert to fraction form
    1,296,434,442.23/1,789,079,617.71 = 709,723,578.23/x
  3. Step 3: Cross multiply
    1,296,434,442.23x = 1,789,079,617.71 × 709,723,578.23
  4. Step 4: Simplify right side
    1,296,434,442.23x = 1,269,751,988,019,501,824
  5. Step 5: Solve for x
    x = 1,269,751,988,019,501,824/1,296,434,442.23
  6. Step 6: Final answer
    x = 979,418,585.82

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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.