Home / 20,286,732-30,431,869.20-5,140,664.04

Finding the Fourth Proportional to 20,286,732, 30,431,869.20 and 5,140,664.04

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Solution

The fourth proportional to 20,286,732, 30,431,869.20 and 5,140,664.04 is: 7,711,444.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286,732 : 30,431,869.20 = 5,140,664.04 : x
  2. Step 2: Convert to fraction form
    20,286,732/30,431,869.20 = 5,140,664.04/x
  3. Step 3: Cross multiply
    20,286,732x = 30,431,869.20 × 5,140,664.04
  4. Step 4: Simplify right side
    20,286,732x = 156,440,015,666,423.56
  5. Step 5: Solve for x
    x = 156,440,015,666,423.56/20,286,732
  6. Step 6: Final answer
    x = 7,711,444.88

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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.