Home / 18,173,064.60-25,078,989.29-9,913,163.58

Finding the Fourth Proportional to 18,173,064.60, 25,078,989.29 and 9,913,163.58

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Solution

The fourth proportional to 18,173,064.60, 25,078,989.29 and 9,913,163.58 is: 13,680,253.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,173,064.60 : 25,078,989.29 = 9,913,163.58 : x
  2. Step 2: Convert to fraction form
    18,173,064.60/25,078,989.29 = 9,913,163.58/x
  3. Step 3: Cross multiply
    18,173,064.60x = 25,078,989.29 × 9,913,163.58
  4. Step 4: Simplify right side
    18,173,064.60x = 248,612,123,203,272.25
  5. Step 5: Solve for x
    x = 248,612,123,203,272.25/18,173,064.60
  6. Step 6: Final answer
    x = 13,680,253.09

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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.