Home / 285,146,539.88-393,502,516.26-154,766,374.76

Finding the Fourth Proportional to 285,146,539.88, 393,502,516.26 and 154,766,374.76

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Solution

The fourth proportional to 285,146,539.88, 393,502,516.26 and 154,766,374.76 is: 213,577,755.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,146,539.88 : 393,502,516.26 = 154,766,374.76 : x
  2. Step 2: Convert to fraction form
    285,146,539.88/393,502,516.26 = 154,766,374.76/x
  3. Step 3: Cross multiply
    285,146,539.88x = 393,502,516.26 × 154,766,374.76
  4. Step 4: Simplify right side
    285,146,539.88x = 60,900,957,900,498,152
  5. Step 5: Solve for x
    x = 60,900,957,900,498,152/285,146,539.88
  6. Step 6: Final answer
    x = 213,577,755.23

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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.