Home / 91,808,729.20-137,713,093.80-71,002,814.06

Finding the Fourth Proportional to 91,808,729.20, 137,713,093.80 and 71,002,814.06

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Solution

The fourth proportional to 91,808,729.20, 137,713,093.80 and 71,002,814.06 is: 106,504,221.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,808,729.20 : 137,713,093.80 = 71,002,814.06 : x
  2. Step 2: Convert to fraction form
    91,808,729.20/137,713,093.80 = 71,002,814.06/x
  3. Step 3: Cross multiply
    91,808,729.20x = 137,713,093.80 × 71,002,814.06
  4. Step 4: Simplify right side
    91,808,729.20x = 9,778,017,192,708,740
  5. Step 5: Solve for x
    x = 9,778,017,192,708,740/91,808,729.20
  6. Step 6: Final answer
    x = 106,504,221.09

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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.