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Finding the Fourth Proportional to 206,885,609.20, 310,284,868.20 and 104,553,449.20

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Solution

The fourth proportional to 206,885,609.20, 310,284,868.20 and 104,553,449.20 is: 156,808,167.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,885,609.20 : 310,284,868.20 = 104,553,449.20 : x
  2. Step 2: Convert to fraction form
    206,885,609.20/310,284,868.20 = 104,553,449.20/x
  3. Step 3: Cross multiply
    206,885,609.20x = 310,284,868.20 × 104,553,449.20
  4. Step 4: Simplify right side
    206,885,609.20x = 32,441,353,204,877,396
  5. Step 5: Solve for x
    x = 32,441,353,204,877,396/206,885,609.20
  6. Step 6: Final answer
    x = 156,808,167.23

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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.