Home / 861,613,535,946.88-1,292,420,304,009.10-287,929,648,930.70

Finding the Fourth Proportional to 861,613,535,946.88, 1,292,420,304,009.10 and 287,929,648,930.70

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Solution

The fourth proportional to 861,613,535,946.88, 1,292,420,304,009.10 and 287,929,648,930.70 is: 431,894,473,425.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,613,535,946.88 : 1,292,420,304,009.10 = 287,929,648,930.70 : x
  2. Step 2: Convert to fraction form
    861,613,535,946.88/1,292,420,304,009.10 = 287,929,648,930.70/x
  3. Step 3: Cross multiply
    861,613,535,946.88x = 1,292,420,304,009.10 × 287,929,648,930.70
  4. Step 4: Simplify right side
    861,613,535,946.88x = 372,126,124,404,248,766,578,688
  5. Step 5: Solve for x
    x = 372,126,124,404,248,766,578,688/861,613,535,946.88
  6. Step 6: Final answer
    x = 431,894,473,425.72

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Double scale
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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.