Home / 108,256,861.60-162,385,292.40-85,298,610.40

Finding the Fourth Proportional to 108,256,861.60, 162,385,292.40 and 85,298,610.40

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Solution

The fourth proportional to 108,256,861.60, 162,385,292.40 and 85,298,610.40 is: 127,947,915.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,256,861.60 : 162,385,292.40 = 85,298,610.40 : x
  2. Step 2: Convert to fraction form
    108,256,861.60/162,385,292.40 = 85,298,610.40/x
  3. Step 3: Cross multiply
    108,256,861.60x = 162,385,292.40 × 85,298,610.40
  4. Step 4: Simplify right side
    108,256,861.60x = 13,851,239,791,117,682
  5. Step 5: Solve for x
    x = 13,851,239,791,117,682/108,256,861.60
  6. Step 6: Final answer
    x = 127,947,915.60

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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.