Home / 31,712,325.66-43,769,146.86-20,679,921.90

Finding the Fourth Proportional to 31,712,325.66, 43,769,146.86 and 20,679,921.90

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Solution

The fourth proportional to 31,712,325.66, 43,769,146.86 and 20,679,921.90 is: 28,542,294.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,712,325.66 : 43,769,146.86 = 20,679,921.90 : x
  2. Step 2: Convert to fraction form
    31,712,325.66/43,769,146.86 = 20,679,921.90/x
  3. Step 3: Cross multiply
    31,712,325.66x = 43,769,146.86 × 20,679,921.90
  4. Step 4: Simplify right side
    31,712,325.66x = 905,142,538,694,430.12
  5. Step 5: Solve for x
    x = 905,142,538,694,430.12/31,712,325.66
  6. Step 6: Final answer
    x = 28,542,294.51

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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.