Home / 12,776,418.20-19,157,628.90-5,194,818.20

Finding the Fourth Proportional to 12,776,418.20, 19,157,628.90 and 5,194,818.20

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Solution

The fourth proportional to 12,776,418.20, 19,157,628.90 and 5,194,818.20 is: 7,789,381.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776,418.20 : 19,157,628.90 = 5,194,818.20 : x
  2. Step 2: Convert to fraction form
    12,776,418.20/19,157,628.90 = 5,194,818.20/x
  3. Step 3: Cross multiply
    12,776,418.20x = 19,157,628.90 × 5,194,818.20
  4. Step 4: Simplify right side
    12,776,418.20x = 99,520,399,278,565.97
  5. Step 5: Solve for x
    x = 99,520,399,278,565.97/12,776,418.20
  6. Step 6: Final answer
    x = 7,789,381.79

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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.