Home / 20,782,913.30-31,174,369.95-15,744,065.30

Finding the Fourth Proportional to 20,782,913.30, 31,174,369.95 and 15,744,065.30

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Solution

The fourth proportional to 20,782,913.30, 31,174,369.95 and 15,744,065.30 is: 23,616,097.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,782,913.30 : 31,174,369.95 = 15,744,065.30 : x
  2. Step 2: Convert to fraction form
    20,782,913.30/31,174,369.95 = 15,744,065.30/x
  3. Step 3: Cross multiply
    20,782,913.30x = 31,174,369.95 × 15,744,065.30
  4. Step 4: Simplify right side
    20,782,913.30x = 490,811,316,179,157.75
  5. Step 5: Solve for x
    x = 490,811,316,179,157.75/20,782,913.30
  6. Step 6: Final answer
    x = 23,616,097.95

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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.