Home / 120,031,619,600.80-179,807,380,126.08-72,198,218,130.40

Finding the Fourth Proportional to 120,031,619,600.80, 179,807,380,126.08 and 72,198,218,130.40

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Solution

The fourth proportional to 120,031,619,600.80, 179,807,380,126.08 and 72,198,218,130.40 is: 108,152,939,158.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,031,619,600.80 : 179,807,380,126.08 = 72,198,218,130.40 : x
  2. Step 2: Convert to fraction form
    120,031,619,600.80/179,807,380,126.08 = 72,198,218,130.40/x
  3. Step 3: Cross multiply
    120,031,619,600.80x = 179,807,380,126.08 × 72,198,218,130.40
  4. Step 4: Simplify right side
    120,031,619,600.80x = 12,981,772,451,798,472,196,096
  5. Step 5: Solve for x
    x = 12,981,772,451,798,472,196,096/120,031,619,600.80
  6. Step 6: Final answer
    x = 108,152,939,158.64

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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.