Home / 11,613,978.45-17,386,901.10-8,143,684.92

Finding the Fourth Proportional to 11,613,978.45, 17,386,901.10 and 8,143,684.92

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Solution

The fourth proportional to 11,613,978.45, 17,386,901.10 and 8,143,684.92 is: 12,191,640.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,613,978.45 : 17,386,901.10 = 8,143,684.92 : x
  2. Step 2: Convert to fraction form
    11,613,978.45/17,386,901.10 = 8,143,684.92/x
  3. Step 3: Cross multiply
    11,613,978.45x = 17,386,901.10 × 8,143,684.92
  4. Step 4: Simplify right side
    11,613,978.45x = 141,593,444,293,601.44
  5. Step 5: Solve for x
    x = 141,593,444,293,601.44/11,613,978.45
  6. Step 6: Final answer
    x = 12,191,640.01

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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.