Home / 281,010,689.40-421,516,034.10-178,848,046.20

Finding the Fourth Proportional to 281,010,689.40, 421,516,034.10 and 178,848,046.20

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Solution

The fourth proportional to 281,010,689.40, 421,516,034.10 and 178,848,046.20 is: 268,272,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,010,689.40 : 421,516,034.10 = 178,848,046.20 : x
  2. Step 2: Convert to fraction form
    281,010,689.40/421,516,034.10 = 178,848,046.20/x
  3. Step 3: Cross multiply
    281,010,689.40x = 421,516,034.10 × 178,848,046.20
  4. Step 4: Simplify right side
    281,010,689.40x = 75,387,319,140,757,568
  5. Step 5: Solve for x
    x = 75,387,319,140,757,568/281,010,689.40
  6. Step 6: Final answer
    x = 268,272,069.30

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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.