Home / 202,092,080.80-303,138,121.20-72,719,658.40

Finding the Fourth Proportional to 202,092,080.80, 303,138,121.20 and 72,719,658.40

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Solution

The fourth proportional to 202,092,080.80, 303,138,121.20 and 72,719,658.40 is: 109,079,487.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,092,080.80 : 303,138,121.20 = 72,719,658.40 : x
  2. Step 2: Convert to fraction form
    202,092,080.80/303,138,121.20 = 72,719,658.40/x
  3. Step 3: Cross multiply
    202,092,080.80x = 303,138,121.20 × 72,719,658.40
  4. Step 4: Simplify right side
    202,092,080.80x = 22,044,100,621,681,800
  5. Step 5: Solve for x
    x = 22,044,100,621,681,800/202,092,080.80
  6. Step 6: Final answer
    x = 109,079,487.60

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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.