Home / 120,119,089.20-180,178,633.80-107,364,505.20

Finding the Fourth Proportional to 120,119,089.20, 180,178,633.80 and 107,364,505.20

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Solution

The fourth proportional to 120,119,089.20, 180,178,633.80 and 107,364,505.20 is: 161,046,757.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,119,089.20 : 180,178,633.80 = 107,364,505.20 : x
  2. Step 2: Convert to fraction form
    120,119,089.20/180,178,633.80 = 107,364,505.20/x
  3. Step 3: Cross multiply
    120,119,089.20x = 180,178,633.80 × 107,364,505.20
  4. Step 4: Simplify right side
    120,119,089.20x = 19,344,789,865,548,996
  5. Step 5: Solve for x
    x = 19,344,789,865,548,996/120,119,089.20
  6. Step 6: Final answer
    x = 161,046,757.80

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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.