Home / 120,818,855.20-181,346,247.60-60,302,912.80

Finding the Fourth Proportional to 120,818,855.20, 181,346,247.60 and 60,302,912.80

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Solution

The fourth proportional to 120,818,855.20, 181,346,247.60 and 60,302,912.80 is: 90,513,247.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,818,855.20 : 181,346,247.60 = 60,302,912.80 : x
  2. Step 2: Convert to fraction form
    120,818,855.20/181,346,247.60 = 60,302,912.80/x
  3. Step 3: Cross multiply
    120,818,855.20x = 181,346,247.60 × 60,302,912.80
  4. Step 4: Simplify right side
    120,818,855.20x = 10,935,706,955,630,008
  5. Step 5: Solve for x
    x = 10,935,706,955,630,008/120,818,855.20
  6. Step 6: Final answer
    x = 90,513,247.60

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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.