Home / 99,643,452.20-149,465,178.30-91,990,701.80

Finding the Fourth Proportional to 99,643,452.20, 149,465,178.30 and 91,990,701.80

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Solution

The fourth proportional to 99,643,452.20, 149,465,178.30 and 91,990,701.80 is: 137,986,052.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,643,452.20 : 149,465,178.30 = 91,990,701.80 : x
  2. Step 2: Convert to fraction form
    99,643,452.20/149,465,178.30 = 91,990,701.80/x
  3. Step 3: Cross multiply
    99,643,452.20x = 149,465,178.30 × 91,990,701.80
  4. Step 4: Simplify right side
    99,643,452.20x = 13,749,406,646,479,132
  5. Step 5: Solve for x
    x = 13,749,406,646,479,132/99,643,452.20
  6. Step 6: Final answer
    x = 137,986,052.70

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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.