Home / 146,772,092.60-220,158,138.90-78,747,644.60

Finding the Fourth Proportional to 146,772,092.60, 220,158,138.90 and 78,747,644.60

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Solution

The fourth proportional to 146,772,092.60, 220,158,138.90 and 78,747,644.60 is: 118,121,466.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,772,092.60 : 220,158,138.90 = 78,747,644.60 : x
  2. Step 2: Convert to fraction form
    146,772,092.60/220,158,138.90 = 78,747,644.60/x
  3. Step 3: Cross multiply
    146,772,092.60x = 220,158,138.90 × 78,747,644.60
  4. Step 4: Simplify right side
    146,772,092.60x = 17,336,934,877,894,634
  5. Step 5: Solve for x
    x = 17,336,934,877,894,634/146,772,092.60
  6. Step 6: Final answer
    x = 118,121,466.90

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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.