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Finding the Fourth Proportional to 252,169,409.70, 378,254,114.55 and 88,591,869.90

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Solution

The fourth proportional to 252,169,409.70, 378,254,114.55 and 88,591,869.90 is: 132,887,804.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,169,409.70 : 378,254,114.55 = 88,591,869.90 : x
  2. Step 2: Convert to fraction form
    252,169,409.70/378,254,114.55 = 88,591,869.90/x
  3. Step 3: Cross multiply
    252,169,409.70x = 378,254,114.55 × 88,591,869.90
  4. Step 4: Simplify right side
    252,169,409.70x = 33,510,239,305,353,300
  5. Step 5: Solve for x
    x = 33,510,239,305,353,300/252,169,409.70
  6. Step 6: Final answer
    x = 132,887,804.85

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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.