Home / 112,340,638.20-168,404,669.10-66,317,847.60

Finding the Fourth Proportional to 112,340,638.20, 168,404,669.10 and 66,317,847.60

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Solution

The fourth proportional to 112,340,638.20, 168,404,669.10 and 66,317,847.60 is: 99,414,026.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,340,638.20 : 168,404,669.10 = 66,317,847.60 : x
  2. Step 2: Convert to fraction form
    112,340,638.20/168,404,669.10 = 66,317,847.60/x
  3. Step 3: Cross multiply
    112,340,638.20x = 168,404,669.10 × 66,317,847.60
  4. Step 4: Simplify right side
    112,340,638.20x = 11,168,235,180,502,230
  5. Step 5: Solve for x
    x = 11,168,235,180,502,230/112,340,638.20
  6. Step 6: Final answer
    x = 99,414,026.48

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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.