Home / 28,453,431.56-42,680,178.12-13,317,991.88

Finding the Fourth Proportional to 28,453,431.56, 42,680,178.12 and 13,317,991.88

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Solution

The fourth proportional to 28,453,431.56, 42,680,178.12 and 13,317,991.88 is: 19,977,002.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,453,431.56 : 42,680,178.12 = 13,317,991.88 : x
  2. Step 2: Convert to fraction form
    28,453,431.56/42,680,178.12 = 13,317,991.88/x
  3. Step 3: Cross multiply
    28,453,431.56x = 42,680,178.12 × 13,317,991.88
  4. Step 4: Simplify right side
    28,453,431.56x = 568,414,265,639,113.62
  5. Step 5: Solve for x
    x = 568,414,265,639,113.62/28,453,431.56
  6. Step 6: Final answer
    x = 19,977,002.23

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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.