Home / 285,051,518.10-393,279,672.78-159,585,272.88

Finding the Fourth Proportional to 285,051,518.10, 393,279,672.78 and 159,585,272.88

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Solution

The fourth proportional to 285,051,518.10, 393,279,672.78 and 159,585,272.88 is: 220,176,494.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,051,518.10 : 393,279,672.78 = 159,585,272.88 : x
  2. Step 2: Convert to fraction form
    285,051,518.10/393,279,672.78 = 159,585,272.88/x
  3. Step 3: Cross multiply
    285,051,518.10x = 393,279,672.78 × 159,585,272.88
  4. Step 4: Simplify right side
    285,051,518.10x = 62,761,643,898,753,400
  5. Step 5: Solve for x
    x = 62,761,643,898,753,400/285,051,518.10
  6. Step 6: Final answer
    x = 220,176,494.12

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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.