Home / 13,321,483.58-18,382,621.20-7,520,838.68

Finding the Fourth Proportional to 13,321,483.58, 18,382,621.20 and 7,520,838.68

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Solution

The fourth proportional to 13,321,483.58, 18,382,621.20 and 7,520,838.68 is: 10,378,178.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321,483.58 : 18,382,621.20 = 7,520,838.68 : x
  2. Step 2: Convert to fraction form
    13,321,483.58/18,382,621.20 = 7,520,838.68/x
  3. Step 3: Cross multiply
    13,321,483.58x = 18,382,621.20 × 7,520,838.68
  4. Step 4: Simplify right side
    13,321,483.58x = 138,252,728,560,748
  5. Step 5: Solve for x
    x = 138,252,728,560,748/13,321,483.58
  6. Step 6: Final answer
    x = 10,378,178.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.