Home / 78,033,718.80-117,015,148.80-29,495,440.80

Finding the Fourth Proportional to 78,033,718.80, 117,015,148.80 and 29,495,440.80

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Solution

The fourth proportional to 78,033,718.80, 117,015,148.80 and 29,495,440.80 is: 44,229,769.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,033,718.80 : 117,015,148.80 = 29,495,440.80 : x
  2. Step 2: Convert to fraction form
    78,033,718.80/117,015,148.80 = 29,495,440.80/x
  3. Step 3: Cross multiply
    78,033,718.80x = 117,015,148.80 × 29,495,440.80
  4. Step 4: Simplify right side
    78,033,718.80x = 3,451,413,394,133,591
  5. Step 5: Solve for x
    x = 3,451,413,394,133,591/78,033,718.80
  6. Step 6: Final answer
    x = 44,229,769.48

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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.