Home / 131,840,638.96-181,923,359.04-72,286,262.80

Finding the Fourth Proportional to 131,840,638.96, 181,923,359.04 and 72,286,262.80

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Solution

The fourth proportional to 131,840,638.96, 181,923,359.04 and 72,286,262.80 is: 99,745,873.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,840,638.96 : 181,923,359.04 = 72,286,262.80 : x
  2. Step 2: Convert to fraction form
    131,840,638.96/181,923,359.04 = 72,286,262.80/x
  3. Step 3: Cross multiply
    131,840,638.96x = 181,923,359.04 × 72,286,262.80
  4. Step 4: Simplify right side
    131,840,638.96x = 13,150,559,741,024,194
  5. Step 5: Solve for x
    x = 13,150,559,741,024,194/131,840,638.96
  6. Step 6: Final answer
    x = 99,745,873.84

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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.