Home / 28,589,807.20-42,868,964.40-11,531,207.20

Finding the Fourth Proportional to 28,589,807.20, 42,868,964.40 and 11,531,207.20

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Solution

The fourth proportional to 28,589,807.20, 42,868,964.40 and 11,531,207.20 is: 17,290,459.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,589,807.20 : 42,868,964.40 = 11,531,207.20 : x
  2. Step 2: Convert to fraction form
    28,589,807.20/42,868,964.40 = 11,531,207.20/x
  3. Step 3: Cross multiply
    28,589,807.20x = 42,868,964.40 × 11,531,207.20
  4. Step 4: Simplify right side
    28,589,807.20x = 494,330,910,945,823.62
  5. Step 5: Solve for x
    x = 494,330,910,945,823.62/28,589,807.20
  6. Step 6: Final answer
    x = 17,290,459.76

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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.