Home / 42,624,529.20-63,936,793.80-18,690,001.20

Finding the Fourth Proportional to 42,624,529.20, 63,936,793.80 and 18,690,001.20

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Solution

The fourth proportional to 42,624,529.20, 63,936,793.80 and 18,690,001.20 is: 28,035,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,624,529.20 : 63,936,793.80 = 18,690,001.20 : x
  2. Step 2: Convert to fraction form
    42,624,529.20/63,936,793.80 = 18,690,001.20/x
  3. Step 3: Cross multiply
    42,624,529.20x = 63,936,793.80 × 18,690,001.20
  4. Step 4: Simplify right side
    42,624,529.20x = 1,194,978,752,846,152.50
  5. Step 5: Solve for x
    x = 1,194,978,752,846,152.50/42,624,529.20
  6. Step 6: Final answer
    x = 28,035,001.80

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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.