Home / 861,613,535,945.88-1,292,420,304,007.60-287,929,648,929.70

Finding the Fourth Proportional to 861,613,535,945.88, 1,292,420,304,007.60 and 287,929,648,929.70

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Solution

The fourth proportional to 861,613,535,945.88, 1,292,420,304,007.60 and 287,929,648,929.70 is: 431,894,473,424.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,613,535,945.88 : 1,292,420,304,007.60 = 287,929,648,929.70 : x
  2. Step 2: Convert to fraction form
    861,613,535,945.88/1,292,420,304,007.60 = 287,929,648,929.70/x
  3. Step 3: Cross multiply
    861,613,535,945.88x = 1,292,420,304,007.60 × 287,929,648,929.70
  4. Step 4: Simplify right side
    861,613,535,945.88x = 372,126,124,402,524,471,427,072
  5. Step 5: Solve for x
    x = 372,126,124,402,524,471,427,072/861,613,535,945.88
  6. Step 6: Final answer
    x = 431,894,473,424.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.