Home / 91,497,998.60-137,353,286.10-55,147,434.20

Finding the Fourth Proportional to 91,497,998.60, 137,353,286.10 and 55,147,434.20

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Solution

The fourth proportional to 91,497,998.60, 137,353,286.10 and 55,147,434.20 is: 82,785,213.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,497,998.60 : 137,353,286.10 = 55,147,434.20 : x
  2. Step 2: Convert to fraction form
    91,497,998.60/137,353,286.10 = 55,147,434.20/x
  3. Step 3: Cross multiply
    91,497,998.60x = 137,353,286.10 × 55,147,434.20
  4. Step 4: Simplify right side
    91,497,998.60x = 7,574,681,307,353,525
  5. Step 5: Solve for x
    x = 7,574,681,307,353,525/91,497,998.60
  6. Step 6: Final answer
    x = 82,785,213.05

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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.