Home / 12,771,179.28-17,630,728.92-9,864,043.92

Finding the Fourth Proportional to 12,771,179.28, 17,630,728.92 and 9,864,043.92

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Solution

The fourth proportional to 12,771,179.28, 17,630,728.92 and 9,864,043.92 is: 13,617,402.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771,179.28 : 17,630,728.92 = 9,864,043.92 : x
  2. Step 2: Convert to fraction form
    12,771,179.28/17,630,728.92 = 9,864,043.92/x
  3. Step 3: Cross multiply
    12,771,179.28x = 17,630,728.92 × 9,864,043.92
  4. Step 4: Simplify right side
    12,771,179.28x = 173,910,284,408,494.19
  5. Step 5: Solve for x
    x = 173,910,284,408,494.19/12,771,179.28
  6. Step 6: Final answer
    x = 13,617,402.17

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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.