Home / 290,304,493.20-435,494,064.60-144,812,422.80

Finding the Fourth Proportional to 290,304,493.20, 435,494,064.60 and 144,812,422.80

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Solution

The fourth proportional to 290,304,493.20, 435,494,064.60 and 144,812,422.80 is: 217,237,252.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,304,493.20 : 435,494,064.60 = 144,812,422.80 : x
  2. Step 2: Convert to fraction form
    290,304,493.20/435,494,064.60 = 144,812,422.80/x
  3. Step 3: Cross multiply
    290,304,493.20x = 435,494,064.60 × 144,812,422.80
  4. Step 4: Simplify right side
    290,304,493.20x = 63,064,950,609,745,720
  5. Step 5: Solve for x
    x = 63,064,950,609,745,720/290,304,493.20
  6. Step 6: Final answer
    x = 217,237,252.91

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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.