Home / 1,265,535,935.88-1,897,610,355.48-391,894,761.24

Finding the Fourth Proportional to 1,265,535,935.88, 1,897,610,355.48 and 391,894,761.24

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Solution

The fourth proportional to 1,265,535,935.88, 1,897,610,355.48 and 391,894,761.24 is: 587,627,372.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,535,935.88 : 1,897,610,355.48 = 391,894,761.24 : x
  2. Step 2: Convert to fraction form
    1,265,535,935.88/1,897,610,355.48 = 391,894,761.24/x
  3. Step 3: Cross multiply
    1,265,535,935.88x = 1,897,610,355.48 × 391,894,761.24
  4. Step 4: Simplify right side
    1,265,535,935.88x = 743,663,557,187,386,112
  5. Step 5: Solve for x
    x = 743,663,557,187,386,112/1,265,535,935.88
  6. Step 6: Final answer
    x = 587,627,372.80

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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.