Home / 91,799,728.12-126,685,896.55-49,986,085.71

Finding the Fourth Proportional to 91,799,728.12, 126,685,896.55 and 49,986,085.71

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Solution

The fourth proportional to 91,799,728.12, 126,685,896.55 and 49,986,085.71 is: 68,982,035.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,799,728.12 : 126,685,896.55 = 49,986,085.71 : x
  2. Step 2: Convert to fraction form
    91,799,728.12/126,685,896.55 = 49,986,085.71/x
  3. Step 3: Cross multiply
    91,799,728.12x = 126,685,896.55 × 49,986,085.71
  4. Step 4: Simplify right side
    91,799,728.12x = 6,332,532,083,546,600
  5. Step 5: Solve for x
    x = 6,332,532,083,546,600/91,799,728.12
  6. Step 6: Final answer
    x = 68,982,035.28

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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.