Home / 18,665,385.20-25,758,225.72-10,080,681.20

Finding the Fourth Proportional to 18,665,385.20, 25,758,225.72 and 10,080,681.20

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Solution

The fourth proportional to 18,665,385.20, 25,758,225.72 and 10,080,681.20 is: 13,911,336.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665,385.20 : 25,758,225.72 = 10,080,681.20 : x
  2. Step 2: Convert to fraction form
    18,665,385.20/25,758,225.72 = 10,080,681.20/x
  3. Step 3: Cross multiply
    18,665,385.20x = 25,758,225.72 × 10,080,681.20
  4. Step 4: Simplify right side
    18,665,385.20x = 259,660,461,760,960.44
  5. Step 5: Solve for x
    x = 259,660,461,760,960.44/18,665,385.20
  6. Step 6: Final answer
    x = 13,911,336.89

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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.