Home / 113,385,911.06-156,389,017.97-85,509,796.04

Finding the Fourth Proportional to 113,385,911.06, 156,389,017.97 and 85,509,796.04

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Solution

The fourth proportional to 113,385,911.06, 156,389,017.97 and 85,509,796.04 is: 117,940,517.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,385,911.06 : 156,389,017.97 = 85,509,796.04 : x
  2. Step 2: Convert to fraction form
    113,385,911.06/156,389,017.97 = 85,509,796.04/x
  3. Step 3: Cross multiply
    113,385,911.06x = 156,389,017.97 × 85,509,796.04
  4. Step 4: Simplify right side
    113,385,911.06x = 13,372,793,028,301,100
  5. Step 5: Solve for x
    x = 13,372,793,028,301,100/113,385,911.06
  6. Step 6: Final answer
    x = 117,940,517.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.