Home / 77,292,061.20-115,938,016.92-19,784,239.92

Finding the Fourth Proportional to 77,292,061.20, 115,938,016.92 and 19,784,239.92

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Solution

The fourth proportional to 77,292,061.20, 115,938,016.92 and 19,784,239.92 is: 29,676,340.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,292,061.20 : 115,938,016.92 = 19,784,239.92 : x
  2. Step 2: Convert to fraction form
    77,292,061.20/115,938,016.92 = 19,784,239.92/x
  3. Step 3: Cross multiply
    77,292,061.20x = 115,938,016.92 × 19,784,239.92
  4. Step 4: Simplify right side
    77,292,061.20x = 2,293,745,542,594,299.50
  5. Step 5: Solve for x
    x = 2,293,745,542,594,299.50/77,292,061.20
  6. Step 6: Final answer
    x = 29,676,340.71

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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.