Home / 285,146,542.88-393,502,520.40-154,766,377.76

Finding the Fourth Proportional to 285,146,542.88, 393,502,520.40 and 154,766,377.76

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Solution

The fourth proportional to 285,146,542.88, 393,502,520.40 and 154,766,377.76 is: 213,577,759.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,146,542.88 : 393,502,520.40 = 154,766,377.76 : x
  2. Step 2: Convert to fraction form
    285,146,542.88/393,502,520.40 = 154,766,377.76/x
  3. Step 3: Cross multiply
    285,146,542.88x = 393,502,520.40 × 154,766,377.76
  4. Step 4: Simplify right side
    285,146,542.88x = 60,900,959,721,738,496
  5. Step 5: Solve for x
    x = 60,900,959,721,738,496/285,146,542.88
  6. Step 6: Final answer
    x = 213,577,759.37

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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.