Home / 28,092,761.55-38,771,157.20-15,870,405.87

Finding the Fourth Proportional to 28,092,761.55, 38,771,157.20 and 15,870,405.87

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Solution

The fourth proportional to 28,092,761.55, 38,771,157.20 and 15,870,405.87 is: 21,902,937.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,092,761.55 : 38,771,157.20 = 15,870,405.87 : x
  2. Step 2: Convert to fraction form
    28,092,761.55/38,771,157.20 = 15,870,405.87/x
  3. Step 3: Cross multiply
    28,092,761.55x = 38,771,157.20 × 15,870,405.87
  4. Step 4: Simplify right side
    28,092,761.55x = 615,314,000,734,220.75
  5. Step 5: Solve for x
    x = 615,314,000,734,220.75/28,092,761.55
  6. Step 6: Final answer
    x = 21,902,937.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.