Home / 10,080,490.80-15,120,736.20-7,246,138.80

Finding the Fourth Proportional to 10,080,490.80, 15,120,736.20 and 7,246,138.80

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Solution

The fourth proportional to 10,080,490.80, 15,120,736.20 and 7,246,138.80 is: 10,869,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,080,490.80 : 15,120,736.20 = 7,246,138.80 : x
  2. Step 2: Convert to fraction form
    10,080,490.80/15,120,736.20 = 7,246,138.80/x
  3. Step 3: Cross multiply
    10,080,490.80x = 15,120,736.20 × 7,246,138.80
  4. Step 4: Simplify right side
    10,080,490.80x = 109,566,953,263,384.55
  5. Step 5: Solve for x
    x = 109,566,953,263,384.55/10,080,490.80
  6. Step 6: Final answer
    x = 10,869,208.20

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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.