Home / 20,405,916.40-30,642,052.20-14,765,724.40

Finding the Fourth Proportional to 20,405,916.40, 30,642,052.20 and 14,765,724.40

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Solution

The fourth proportional to 20,405,916.40, 30,642,052.20 and 14,765,724.40 is: 22,172,593.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,405,916.40 : 30,642,052.20 = 14,765,724.40 : x
  2. Step 2: Convert to fraction form
    20,405,916.40/30,642,052.20 = 14,765,724.40/x
  3. Step 3: Cross multiply
    20,405,916.40x = 30,642,052.20 × 14,765,724.40
  4. Step 4: Simplify right side
    20,405,916.40x = 452,452,097,835,613.69
  5. Step 5: Solve for x
    x = 452,452,097,835,613.69/20,405,916.40
  6. Step 6: Final answer
    x = 22,172,593.92

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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.