Home / 131,840,785.80-181,923,559.20-72,286,411.50

Finding the Fourth Proportional to 131,840,785.80, 181,923,559.20 and 72,286,411.50

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Solution

The fourth proportional to 131,840,785.80, 181,923,559.20 and 72,286,411.50 is: 99,746,077.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,840,785.80 : 181,923,559.20 = 72,286,411.50 : x
  2. Step 2: Convert to fraction form
    131,840,785.80/181,923,559.20 = 72,286,411.50/x
  3. Step 3: Cross multiply
    131,840,785.80x = 181,923,559.20 × 72,286,411.50
  4. Step 4: Simplify right side
    131,840,785.80x = 13,150,601,261,875,810
  5. Step 5: Solve for x
    x = 13,150,601,261,875,810/131,840,785.80
  6. Step 6: Final answer
    x = 99,746,077.68

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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.