Home / 91,158,363.30-125,778,431.16-53,970,177.90

Finding the Fourth Proportional to 91,158,363.30, 125,778,431.16 and 53,970,177.90

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Solution

The fourth proportional to 91,158,363.30, 125,778,431.16 and 53,970,177.90 is: 74,466,939.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,158,363.30 : 125,778,431.16 = 53,970,177.90 : x
  2. Step 2: Convert to fraction form
    91,158,363.30/125,778,431.16 = 53,970,177.90/x
  3. Step 3: Cross multiply
    91,158,363.30x = 125,778,431.16 × 53,970,177.90
  4. Step 4: Simplify right side
    91,158,363.30x = 6,788,284,305,688,103
  5. Step 5: Solve for x
    x = 6,788,284,305,688,103/91,158,363.30
  6. Step 6: Final answer
    x = 74,466,939.29

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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.