Home / 138,012,909.60-206,843,529.60-73,347,693.60

Finding the Fourth Proportional to 138,012,909.60, 206,843,529.60 and 73,347,693.60

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Solution

The fourth proportional to 138,012,909.60, 206,843,529.60 and 73,347,693.60 is: 109,928,092.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,012,909.60 : 206,843,529.60 = 73,347,693.60 : x
  2. Step 2: Convert to fraction form
    138,012,909.60/206,843,529.60 = 73,347,693.60/x
  3. Step 3: Cross multiply
    138,012,909.60x = 206,843,529.60 × 73,347,693.60
  4. Step 4: Simplify right side
    138,012,909.60x = 15,171,495,832,243,328
  5. Step 5: Solve for x
    x = 15,171,495,832,243,328/138,012,909.60
  6. Step 6: Final answer
    x = 109,928,092.06

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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.