Home / 100,752,438.80-151,128,658.20-80,597,046.80

Finding the Fourth Proportional to 100,752,438.80, 151,128,658.20 and 80,597,046.80

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Solution

The fourth proportional to 100,752,438.80, 151,128,658.20 and 80,597,046.80 is: 120,895,570.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,752,438.80 : 151,128,658.20 = 80,597,046.80 : x
  2. Step 2: Convert to fraction form
    100,752,438.80/151,128,658.20 = 80,597,046.80/x
  3. Step 3: Cross multiply
    100,752,438.80x = 151,128,658.20 × 80,597,046.80
  4. Step 4: Simplify right side
    100,752,438.80x = 12,180,523,537,766,602
  5. Step 5: Solve for x
    x = 12,180,523,537,766,602/100,752,438.80
  6. Step 6: Final answer
    x = 120,895,570.20

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1.5x scale

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.