Home / 161,628,522.60-242,594,999.10-85,006,540.20

Finding the Fourth Proportional to 161,628,522.60, 242,594,999.10 and 85,006,540.20

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Solution

The fourth proportional to 161,628,522.60, 242,594,999.10 and 85,006,540.20 is: 127,589,866.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,628,522.60 : 242,594,999.10 = 85,006,540.20 : x
  2. Step 2: Convert to fraction form
    161,628,522.60/242,594,999.10 = 85,006,540.20/x
  3. Step 3: Cross multiply
    161,628,522.60x = 242,594,999.10 × 85,006,540.20
  4. Step 4: Simplify right side
    161,628,522.60x = 20,622,161,543,313,116
  5. Step 5: Solve for x
    x = 20,622,161,543,313,116/161,628,522.60
  6. Step 6: Final answer
    x = 127,589,866.02

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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.