Home / 12,589,964.80-18,889,612.80-4,070,579.20

Finding the Fourth Proportional to 12,589,964.80, 18,889,612.80 and 4,070,579.20

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Solution

The fourth proportional to 12,589,964.80, 18,889,612.80 and 4,070,579.20 is: 6,107,377.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589,964.80 : 18,889,612.80 = 4,070,579.20 : x
  2. Step 2: Convert to fraction form
    12,589,964.80/18,889,612.80 = 4,070,579.20/x
  3. Step 3: Cross multiply
    12,589,964.80x = 18,889,612.80 × 4,070,579.20
  4. Step 4: Simplify right side
    12,589,964.80x = 76,891,664,959,733.77
  5. Step 5: Solve for x
    x = 76,891,664,959,733.77/12,589,964.80
  6. Step 6: Final answer
    x = 6,107,377.28

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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.