Home / 78,351,107.60-117,526,661.40-47,695,005.20

Finding the Fourth Proportional to 78,351,107.60, 117,526,661.40 and 47,695,005.20

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Solution

The fourth proportional to 78,351,107.60, 117,526,661.40 and 47,695,005.20 is: 71,542,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,351,107.60 : 117,526,661.40 = 47,695,005.20 : x
  2. Step 2: Convert to fraction form
    78,351,107.60/117,526,661.40 = 47,695,005.20/x
  3. Step 3: Cross multiply
    78,351,107.60x = 117,526,661.40 × 47,695,005.20
  4. Step 4: Simplify right side
    78,351,107.60x = 5,605,434,726,611,640
  5. Step 5: Solve for x
    x = 5,605,434,726,611,640/78,351,107.60
  6. Step 6: Final answer
    x = 71,542,507.80

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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.