Home / 287,388,000.80-431,082,001.20-229,992,372.80

Finding the Fourth Proportional to 287,388,000.80, 431,082,001.20 and 229,992,372.80

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Solution

The fourth proportional to 287,388,000.80, 431,082,001.20 and 229,992,372.80 is: 344,988,559.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,388,000.80 : 431,082,001.20 = 229,992,372.80 : x
  2. Step 2: Convert to fraction form
    287,388,000.80/431,082,001.20 = 229,992,372.80/x
  3. Step 3: Cross multiply
    287,388,000.80x = 431,082,001.20 × 229,992,372.80
  4. Step 4: Simplify right side
    287,388,000.80x = 99,145,572,327,360,448
  5. Step 5: Solve for x
    x = 99,145,572,327,360,448/287,388,000.80
  6. Step 6: Final answer
    x = 344,988,559.20

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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.