Home / 12,979,762.35-17,917,587.53-8,087,401.62

Finding the Fourth Proportional to 12,979,762.35, 17,917,587.53 and 8,087,401.62

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Solution

The fourth proportional to 12,979,762.35, 17,917,587.53 and 8,087,401.62 is: 11,164,050.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,979,762.35 : 17,917,587.53 = 8,087,401.62 : x
  2. Step 2: Convert to fraction form
    12,979,762.35/17,917,587.53 = 8,087,401.62/x
  3. Step 3: Cross multiply
    12,979,762.35x = 17,917,587.53 × 8,087,401.62
  4. Step 4: Simplify right side
    12,979,762.35x = 144,906,726,376,176.78
  5. Step 5: Solve for x
    x = 144,906,726,376,176.78/12,979,762.35
  6. Step 6: Final answer
    x = 11,164,050.81

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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.