Home / 71,524,005.80-107,286,008.70-66,741,036.80

Finding the Fourth Proportional to 71,524,005.80, 107,286,008.70 and 66,741,036.80

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Solution

The fourth proportional to 71,524,005.80, 107,286,008.70 and 66,741,036.80 is: 100,111,555.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,524,005.80 : 107,286,008.70 = 66,741,036.80 : x
  2. Step 2: Convert to fraction form
    71,524,005.80/107,286,008.70 = 66,741,036.80/x
  3. Step 3: Cross multiply
    71,524,005.80x = 107,286,008.70 × 66,741,036.80
  4. Step 4: Simplify right side
    71,524,005.80x = 7,160,379,454,771,820
  5. Step 5: Solve for x
    x = 7,160,379,454,771,820/71,524,005.80
  6. Step 6: Final answer
    x = 100,111,555.20

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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.