Home / 108,722,023.18-163,082,989.41-39,640,000.30

Finding the Fourth Proportional to 108,722,023.18, 163,082,989.41 and 39,640,000.30

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Solution

The fourth proportional to 108,722,023.18, 163,082,989.41 and 39,640,000.30 is: 59,459,983.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,722,023.18 : 163,082,989.41 = 39,640,000.30 : x
  2. Step 2: Convert to fraction form
    108,722,023.18/163,082,989.41 = 39,640,000.30/x
  3. Step 3: Cross multiply
    108,722,023.18x = 163,082,989.41 × 39,640,000.30
  4. Step 4: Simplify right side
    108,722,023.18x = 6,464,609,749,137,296
  5. Step 5: Solve for x
    x = 6,464,609,749,137,296/108,722,023.18
  6. Step 6: Final answer
    x = 59,459,983.91

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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.