Home / 161,625,328.60-242,590,208.10-85,003,346.20

Finding the Fourth Proportional to 161,625,328.60, 242,590,208.10 and 85,003,346.20

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Solution

The fourth proportional to 161,625,328.60, 242,590,208.10 and 85,003,346.20 is: 127,585,073.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,625,328.60 : 242,590,208.10 = 85,003,346.20 : x
  2. Step 2: Convert to fraction form
    161,625,328.60/242,590,208.10 = 85,003,346.20/x
  3. Step 3: Cross multiply
    161,625,328.60x = 242,590,208.10 × 85,003,346.20
  4. Step 4: Simplify right side
    161,625,328.60x = 20,620,979,443,854,344
  5. Step 5: Solve for x
    x = 20,620,979,443,854,344/161,625,328.60
  6. Step 6: Final answer
    x = 127,585,073.59

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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.