Home / 13,778,706.92-20,649,164.70-8,720,989.16

Finding the Fourth Proportional to 13,778,706.92, 20,649,164.70 and 8,720,989.16

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Solution

The fourth proportional to 13,778,706.92, 20,649,164.70 and 8,720,989.16 is: 13,069,524.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,778,706.92 : 20,649,164.70 = 8,720,989.16 : x
  2. Step 2: Convert to fraction form
    13,778,706.92/20,649,164.70 = 8,720,989.16/x
  3. Step 3: Cross multiply
    13,778,706.92x = 20,649,164.70 × 8,720,989.16
  4. Step 4: Simplify right side
    13,778,706.92x = 180,081,141,511,754.66
  5. Step 5: Solve for x
    x = 180,081,141,511,754.66/13,778,706.92
  6. Step 6: Final answer
    x = 13,069,524.05

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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.