Home / 392,897,376.56-589,174,970.92-112,716,470.74

Finding the Fourth Proportional to 392,897,376.56, 589,174,970.92 and 112,716,470.74

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Solution

The fourth proportional to 392,897,376.56, 589,174,970.92 and 112,716,470.74 is: 169,025,621.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,897,376.56 : 589,174,970.92 = 112,716,470.74 : x
  2. Step 2: Convert to fraction form
    392,897,376.56/589,174,970.92 = 112,716,470.74/x
  3. Step 3: Cross multiply
    392,897,376.56x = 589,174,970.92 × 112,716,470.74
  4. Step 4: Simplify right side
    392,897,376.56x = 66,409,723,370,444,520
  5. Step 5: Solve for x
    x = 66,409,723,370,444,520/392,897,376.56
  6. Step 6: Final answer
    x = 169,025,621.78

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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.