Home / 78,804,400.80-118,206,601.20-48,571,312.80

Finding the Fourth Proportional to 78,804,400.80, 118,206,601.20 and 48,571,312.80

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Solution

The fourth proportional to 78,804,400.80, 118,206,601.20 and 48,571,312.80 is: 72,856,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,804,400.80 : 118,206,601.20 = 48,571,312.80 : x
  2. Step 2: Convert to fraction form
    78,804,400.80/118,206,601.20 = 48,571,312.80/x
  3. Step 3: Cross multiply
    78,804,400.80x = 118,206,601.20 × 48,571,312.80
  4. Step 4: Simplify right side
    78,804,400.80x = 5,741,449,801,910,055
  5. Step 5: Solve for x
    x = 5,741,449,801,910,055/78,804,400.80
  6. Step 6: Final answer
    x = 72,856,969.20

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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.