Home / 91,808,727.20-137,713,090.80-71,002,812.06

Finding the Fourth Proportional to 91,808,727.20, 137,713,090.80 and 71,002,812.06

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Solution

The fourth proportional to 91,808,727.20, 137,713,090.80 and 71,002,812.06 is: 106,504,218.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,808,727.20 : 137,713,090.80 = 71,002,812.06 : x
  2. Step 2: Convert to fraction form
    91,808,727.20/137,713,090.80 = 71,002,812.06/x
  3. Step 3: Cross multiply
    91,808,727.20x = 137,713,090.80 × 71,002,812.06
  4. Step 4: Simplify right side
    91,808,727.20x = 9,778,016,704,274,116
  5. Step 5: Solve for x
    x = 9,778,016,704,274,116/91,808,727.20
  6. Step 6: Final answer
    x = 106,504,218.09

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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.