Home / 129,276,043.20-193,914,064.80-100,365,652.80

Finding the Fourth Proportional to 129,276,043.20, 193,914,064.80 and 100,365,652.80

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Solution

The fourth proportional to 129,276,043.20, 193,914,064.80 and 100,365,652.80 is: 150,548,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,276,043.20 : 193,914,064.80 = 100,365,652.80 : x
  2. Step 2: Convert to fraction form
    129,276,043.20/193,914,064.80 = 100,365,652.80/x
  3. Step 3: Cross multiply
    129,276,043.20x = 193,914,064.80 × 100,365,652.80
  4. Step 4: Simplify right side
    129,276,043.20x = 19,462,311,700,753,504
  5. Step 5: Solve for x
    x = 19,462,311,700,753,504/129,276,043.20
  6. Step 6: Final answer
    x = 150,548,479.20

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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.