Home / 78,327,781.65-117,451,124.28-35,159,813.37

Finding the Fourth Proportional to 78,327,781.65, 117,451,124.28 and 35,159,813.37

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Solution

The fourth proportional to 78,327,781.65, 117,451,124.28 and 35,159,813.37 is: 52,721,518.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,327,781.65 : 117,451,124.28 = 35,159,813.37 : x
  2. Step 2: Convert to fraction form
    78,327,781.65/117,451,124.28 = 35,159,813.37/x
  3. Step 3: Cross multiply
    78,327,781.65x = 117,451,124.28 × 35,159,813.37
  4. Step 4: Simplify right side
    78,327,781.65x = 4,129,559,609,781,475.50
  5. Step 5: Solve for x
    x = 4,129,559,609,781,475.50/78,327,781.65
  6. Step 6: Final answer
    x = 52,721,518.76

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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.