Home / 478,669,672.20-718,004,508.30-418,203,496.20

Finding the Fourth Proportional to 478,669,672.20, 718,004,508.30 and 418,203,496.20

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Solution

The fourth proportional to 478,669,672.20, 718,004,508.30 and 418,203,496.20 is: 627,305,244.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,669,672.20 : 718,004,508.30 = 418,203,496.20 : x
  2. Step 2: Convert to fraction form
    478,669,672.20/718,004,508.30 = 418,203,496.20/x
  3. Step 3: Cross multiply
    478,669,672.20x = 718,004,508.30 × 418,203,496.20
  4. Step 4: Simplify right side
    478,669,672.20x = 300,271,995,658,421,888
  5. Step 5: Solve for x
    x = 300,271,995,658,421,888/478,669,672.20
  6. Step 6: Final answer
    x = 627,305,244.30

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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.