Home / 478,702,023.20-718,053,034.80-418,235,847.20

Finding the Fourth Proportional to 478,702,023.20, 718,053,034.80 and 418,235,847.20

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Solution

The fourth proportional to 478,702,023.20, 718,053,034.80 and 418,235,847.20 is: 627,353,770.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,702,023.20 : 718,053,034.80 = 418,235,847.20 : x
  2. Step 2: Convert to fraction form
    478,702,023.20/718,053,034.80 = 418,235,847.20/x
  3. Step 3: Cross multiply
    478,702,023.20x = 718,053,034.80 × 418,235,847.20
  4. Step 4: Simplify right side
    478,702,023.20x = 300,315,519,344,109,056
  5. Step 5: Solve for x
    x = 300,315,519,344,109,056/478,702,023.20
  6. Step 6: Final answer
    x = 627,353,770.80

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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.