Home / 20,286,733-30,431,870.70-5,140,665.04

Finding the Fourth Proportional to 20,286,733, 30,431,870.70 and 5,140,665.04

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Solution

The fourth proportional to 20,286,733, 30,431,870.70 and 5,140,665.04 is: 7,711,446.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286,733 : 30,431,870.70 = 5,140,665.04 : x
  2. Step 2: Convert to fraction form
    20,286,733/30,431,870.70 = 5,140,665.04/x
  3. Step 3: Cross multiply
    20,286,733x = 30,431,870.70 × 5,140,665.04
  4. Step 4: Simplify right side
    20,286,733x = 156,440,053,809,290.31
  5. Step 5: Solve for x
    x = 156,440,053,809,290.31/20,286,733
  6. Step 6: Final answer
    x = 7,711,446.38

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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.