Home / 78,804,910.80-118,207,366.20-48,571,822.80

Finding the Fourth Proportional to 78,804,910.80, 118,207,366.20 and 48,571,822.80

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Solution

The fourth proportional to 78,804,910.80, 118,207,366.20 and 48,571,822.80 is: 72,857,734.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,804,910.80 : 118,207,366.20 = 48,571,822.80 : x
  2. Step 2: Convert to fraction form
    78,804,910.80/118,207,366.20 = 48,571,822.80/x
  3. Step 3: Cross multiply
    78,804,910.80x = 118,207,366.20 × 48,571,822.80
  4. Step 4: Simplify right side
    78,804,910.80x = 5,741,547,244,721,109
  5. Step 5: Solve for x
    x = 5,741,547,244,721,109/78,804,910.80
  6. Step 6: Final answer
    x = 72,857,734.20

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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.