Home / 28,082,495.40-42,123,743.10-15,989,260.20

Finding the Fourth Proportional to 28,082,495.40, 42,123,743.10 and 15,989,260.20

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Solution

The fourth proportional to 28,082,495.40, 42,123,743.10 and 15,989,260.20 is: 23,983,890.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082,495.40 : 42,123,743.10 = 15,989,260.20 : x
  2. Step 2: Convert to fraction form
    28,082,495.40/42,123,743.10 = 15,989,260.20/x
  3. Step 3: Cross multiply
    28,082,495.40x = 42,123,743.10 × 15,989,260.20
  4. Step 4: Simplify right side
    28,082,495.40x = 673,527,489,023,854.62
  5. Step 5: Solve for x
    x = 673,527,489,023,854.62/28,082,495.40
  6. Step 6: Final answer
    x = 23,983,890.30

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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.