Home / 28,040,225.80-42,060,338.70-15,905,000.20

Finding the Fourth Proportional to 28,040,225.80, 42,060,338.70 and 15,905,000.20

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Solution

The fourth proportional to 28,040,225.80, 42,060,338.70 and 15,905,000.20 is: 23,857,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040,225.80 : 42,060,338.70 = 15,905,000.20 : x
  2. Step 2: Convert to fraction form
    28,040,225.80/42,060,338.70 = 15,905,000.20/x
  3. Step 3: Cross multiply
    28,040,225.80x = 42,060,338.70 × 15,905,000.20
  4. Step 4: Simplify right side
    28,040,225.80x = 668,969,695,435,567.75
  5. Step 5: Solve for x
    x = 668,969,695,435,567.75/28,040,225.80
  6. Step 6: Final answer
    x = 23,857,500.30

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Similar ratio
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1.5x scale

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.