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Finding the Fourth Proportional to 220,669,300.80, 331,153,250.40 and 99,438,350.40

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Solution

The fourth proportional to 220,669,300.80, 331,153,250.40 and 99,438,350.40 is: 149,224,803.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,669,300.80 : 331,153,250.40 = 99,438,350.40 : x
  2. Step 2: Convert to fraction form
    220,669,300.80/331,153,250.40 = 99,438,350.40/x
  3. Step 3: Cross multiply
    220,669,300.80x = 331,153,250.40 × 99,438,350.40
  4. Step 4: Simplify right side
    220,669,300.80x = 32,929,332,949,374,140
  5. Step 5: Solve for x
    x = 32,929,332,949,374,140/220,669,300.80
  6. Step 6: Final answer
    x = 149,224,803.04

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.