Home / 91,151,812.17-125,789,491.71-49,335,870.78

Finding the Fourth Proportional to 91,151,812.17, 125,789,491.71 and 49,335,870.78

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Solution

The fourth proportional to 91,151,812.17, 125,789,491.71 and 49,335,870.78 is: 68,083,496.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,151,812.17 : 125,789,491.71 = 49,335,870.78 : x
  2. Step 2: Convert to fraction form
    91,151,812.17/125,789,491.71 = 49,335,870.78/x
  3. Step 3: Cross multiply
    91,151,812.17x = 125,789,491.71 × 49,335,870.78
  4. Step 4: Simplify right side
    91,151,812.17x = 6,205,934,108,486,441
  5. Step 5: Solve for x
    x = 6,205,934,108,486,441/91,151,812.17
  6. Step 6: Final answer
    x = 68,083,496.76

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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.