Home / 18,676,679.90-28,015,878.24-5,721,901.56

Finding the Fourth Proportional to 18,676,679.90, 28,015,878.24 and 5,721,901.56

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Solution

The fourth proportional to 18,676,679.90, 28,015,878.24 and 5,721,901.56 is: 8,583,115.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676,679.90 : 28,015,878.24 = 5,721,901.56 : x
  2. Step 2: Convert to fraction form
    18,676,679.90/28,015,878.24 = 5,721,901.56/x
  3. Step 3: Cross multiply
    18,676,679.90x = 28,015,878.24 × 5,721,901.56
  4. Step 4: Simplify right side
    18,676,679.90x = 160,304,097,406,226.03
  5. Step 5: Solve for x
    x = 160,304,097,406,226.03/18,676,679.90
  6. Step 6: Final answer
    x = 8,583,115.32

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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.