Home / 91,646,110.40-137,469,165.60-79,174,961.60

Finding the Fourth Proportional to 91,646,110.40, 137,469,165.60 and 79,174,961.60

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Solution

The fourth proportional to 91,646,110.40, 137,469,165.60 and 79,174,961.60 is: 118,762,442.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,646,110.40 : 137,469,165.60 = 79,174,961.60 : x
  2. Step 2: Convert to fraction form
    91,646,110.40/137,469,165.60 = 79,174,961.60/x
  3. Step 3: Cross multiply
    91,646,110.40x = 137,469,165.60 × 79,174,961.60
  4. Step 4: Simplify right side
    91,646,110.40x = 10,884,115,907,564,040
  5. Step 5: Solve for x
    x = 10,884,115,907,564,040/91,646,110.40
  6. Step 6: Final answer
    x = 118,762,442.40

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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.