Home / 78,732,128.55-118,098,192.83-73,630,294.95

Finding the Fourth Proportional to 78,732,128.55, 118,098,192.83 and 73,630,294.95

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Solution

The fourth proportional to 78,732,128.55, 118,098,192.83 and 73,630,294.95 is: 110,445,442.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,128.55 : 118,098,192.83 = 73,630,294.95 : x
  2. Step 2: Convert to fraction form
    78,732,128.55/118,098,192.83 = 73,630,294.95/x
  3. Step 3: Cross multiply
    78,732,128.55x = 118,098,192.83 × 73,630,294.95
  4. Step 4: Simplify right side
    78,732,128.55x = 8,695,604,770,766,724
  5. Step 5: Solve for x
    x = 8,695,604,770,766,724/78,732,128.55
  6. Step 6: Final answer
    x = 110,445,442.43

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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.