Home / 91,151,454.47-125,788,997.66-49,335,512.36

Finding the Fourth Proportional to 91,151,454.47, 125,788,997.66 and 49,335,512.36

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Solution

The fourth proportional to 91,151,454.47, 125,788,997.66 and 49,335,512.36 is: 68,083,001.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,151,454.47 : 125,788,997.66 = 49,335,512.36 : x
  2. Step 2: Convert to fraction form
    91,151,454.47/125,788,997.66 = 49,335,512.36/x
  3. Step 3: Cross multiply
    91,151,454.47x = 125,788,997.66 × 49,335,512.36
  4. Step 4: Simplify right side
    91,151,454.47x = 6,205,864,647,931,318
  5. Step 5: Solve for x
    x = 6,205,864,647,931,318/91,151,454.47
  6. Step 6: Final answer
    x = 68,083,001.90

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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.