Home / 12,215,352.30-18,323,018.01-3,117,449.16

Finding the Fourth Proportional to 12,215,352.30, 18,323,018.01 and 3,117,449.16

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Solution

The fourth proportional to 12,215,352.30, 18,323,018.01 and 3,117,449.16 is: 4,676,171.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215,352.30 : 18,323,018.01 = 3,117,449.16 : x
  2. Step 2: Convert to fraction form
    12,215,352.30/18,323,018.01 = 3,117,449.16/x
  3. Step 3: Cross multiply
    12,215,352.30x = 18,323,018.01 × 3,117,449.16
  4. Step 4: Simplify right side
    12,215,352.30x = 57,121,077,103,939.38
  5. Step 5: Solve for x
    x = 57,121,077,103,939.38/12,215,352.30
  6. Step 6: Final answer
    x = 4,676,171.08

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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.