Home / 311,930,998.20-468,904,266.90-287,744,527.80

Finding the Fourth Proportional to 311,930,998.20, 468,904,266.90 and 287,744,527.80

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Solution

The fourth proportional to 311,930,998.20, 468,904,266.90 and 287,744,527.80 is: 432,546,420.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,930,998.20 : 468,904,266.90 = 287,744,527.80 : x
  2. Step 2: Convert to fraction form
    311,930,998.20/468,904,266.90 = 287,744,527.80/x
  3. Step 3: Cross multiply
    311,930,998.20x = 468,904,266.90 × 287,744,527.80
  4. Step 4: Simplify right side
    311,930,998.20x = 134,924,636,862,545,664
  5. Step 5: Solve for x
    x = 134,924,636,862,545,664/311,930,998.20
  6. Step 6: Final answer
    x = 432,546,420.97

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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.