Home / 13,778,705.92-20,649,163.20-8,720,988.16

Finding the Fourth Proportional to 13,778,705.92, 20,649,163.20 and 8,720,988.16

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Solution

The fourth proportional to 13,778,705.92, 20,649,163.20 and 8,720,988.16 is: 13,069,522.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,778,705.92 : 20,649,163.20 = 8,720,988.16 : x
  2. Step 2: Convert to fraction form
    13,778,705.92/20,649,163.20 = 8,720,988.16/x
  3. Step 3: Cross multiply
    13,778,705.92x = 20,649,163.20 × 8,720,988.16
  4. Step 4: Simplify right side
    13,778,705.92x = 180,081,107,781,107.72
  5. Step 5: Solve for x
    x = 180,081,107,781,107.72/13,778,705.92
  6. Step 6: Final answer
    x = 13,069,522.55

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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.