Home / 20,416,114.85-28,174,082.01-11,123,655.74

Finding the Fourth Proportional to 20,416,114.85, 28,174,082.01 and 11,123,655.74

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Solution

The fourth proportional to 20,416,114.85, 28,174,082.01 and 11,123,655.74 is: 15,350,559.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416,114.85 : 28,174,082.01 = 11,123,655.74 : x
  2. Step 2: Convert to fraction form
    20,416,114.85/28,174,082.01 = 11,123,655.74/x
  3. Step 3: Cross multiply
    20,416,114.85x = 28,174,082.01 × 11,123,655.74
  4. Step 4: Simplify right side
    20,416,114.85x = 313,398,788,928,896.81
  5. Step 5: Solve for x
    x = 313,398,788,928,896.81/20,416,114.85
  6. Step 6: Final answer
    x = 15,350,559.66

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1.5x scale

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.