Home / 165,977,459.20-248,966,188.80-84,348,121.60

Finding the Fourth Proportional to 165,977,459.20, 248,966,188.80 and 84,348,121.60

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Solution

The fourth proportional to 165,977,459.20, 248,966,188.80 and 84,348,121.60 is: 126,522,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,977,459.20 : 248,966,188.80 = 84,348,121.60 : x
  2. Step 2: Convert to fraction form
    165,977,459.20/248,966,188.80 = 84,348,121.60/x
  3. Step 3: Cross multiply
    165,977,459.20x = 248,966,188.80 × 84,348,121.60
  4. Step 4: Simplify right side
    165,977,459.20x = 20,999,830,367,190,956
  5. Step 5: Solve for x
    x = 20,999,830,367,190,956/165,977,459.20
  6. Step 6: Final answer
    x = 126,522,182.40

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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.