Home / 57,279,901.28-85,893,213.84-20,862,939.68

Finding the Fourth Proportional to 57,279,901.28, 85,893,213.84 and 20,862,939.68

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Solution

The fourth proportional to 57,279,901.28, 85,893,213.84 and 20,862,939.68 is: 31,284,707.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,279,901.28 : 85,893,213.84 = 20,862,939.68 : x
  2. Step 2: Convert to fraction form
    57,279,901.28/85,893,213.84 = 20,862,939.68/x
  3. Step 3: Cross multiply
    57,279,901.28x = 85,893,213.84 × 20,862,939.68
  4. Step 4: Simplify right side
    57,279,901.28x = 1,791,984,939,265,261.25
  5. Step 5: Solve for x
    x = 1,791,984,939,265,261.25/57,279,901.28
  6. Step 6: Final answer
    x = 31,284,707.19

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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.