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Finding the Fourth Proportional to 375,891,973.20, 563,669,998.20 and 145,784,581.20

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Solution

The fourth proportional to 375,891,973.20, 563,669,998.20 and 145,784,581.20 is: 218,611,730.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,891,973.20 : 563,669,998.20 = 145,784,581.20 : x
  2. Step 2: Convert to fraction form
    375,891,973.20/563,669,998.20 = 145,784,581.20/x
  3. Step 3: Cross multiply
    375,891,973.20x = 563,669,998.20 × 145,784,581.20
  4. Step 4: Simplify right side
    375,891,973.20x = 82,174,394,622,591,760
  5. Step 5: Solve for x
    x = 82,174,394,622,591,760/375,891,973.20
  6. Step 6: Final answer
    x = 218,611,730.18

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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.