Home / 78,732,113.30-118,098,169.95-48,121,111.70

Finding the Fourth Proportional to 78,732,113.30, 118,098,169.95 and 48,121,111.70

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Solution

The fourth proportional to 78,732,113.30, 118,098,169.95 and 48,121,111.70 is: 72,181,667.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,113.30 : 118,098,169.95 = 48,121,111.70 : x
  2. Step 2: Convert to fraction form
    78,732,113.30/118,098,169.95 = 48,121,111.70/x
  3. Step 3: Cross multiply
    78,732,113.30x = 118,098,169.95 × 48,121,111.70
  4. Step 4: Simplify right side
    78,732,113.30x = 5,683,015,227,729,534
  5. Step 5: Solve for x
    x = 5,683,015,227,729,534/78,732,113.30
  6. Step 6: Final answer
    x = 72,181,667.55

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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.