Home / 304,700,605.20-420,615,500.04-205,715,381.04

Finding the Fourth Proportional to 304,700,605.20, 420,615,500.04 and 205,715,381.04

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Solution

The fourth proportional to 304,700,605.20, 420,615,500.04 and 205,715,381.04 is: 283,974,092.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,700,605.20 : 420,615,500.04 = 205,715,381.04 : x
  2. Step 2: Convert to fraction form
    304,700,605.20/420,615,500.04 = 205,715,381.04/x
  3. Step 3: Cross multiply
    304,700,605.20x = 420,615,500.04 × 205,715,381.04
  4. Step 4: Simplify right side
    304,700,605.20x = 86,527,077,862,058,736
  5. Step 5: Solve for x
    x = 86,527,077,862,058,736/304,700,605.20
  6. Step 6: Final answer
    x = 283,974,092.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.