Home / 108,971,314.80-163,375,615.80-65,831,427.60

Finding the Fourth Proportional to 108,971,314.80, 163,375,615.80 and 65,831,427.60

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Solution

The fourth proportional to 108,971,314.80, 163,375,615.80 and 65,831,427.60 is: 98,697,992.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,971,314.80 : 163,375,615.80 = 65,831,427.60 : x
  2. Step 2: Convert to fraction form
    108,971,314.80/163,375,615.80 = 65,831,427.60/x
  3. Step 3: Cross multiply
    108,971,314.80x = 163,375,615.80 × 65,831,427.60
  4. Step 4: Simplify right side
    108,971,314.80x = 10,755,250,023,143,118
  5. Step 5: Solve for x
    x = 10,755,250,023,143,118/108,971,314.80
  6. Step 6: Final answer
    x = 98,697,992.61

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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.