Home / 78,804,568.80-118,206,853.22-48,571,480.80

Finding the Fourth Proportional to 78,804,568.80, 118,206,853.22 and 48,571,480.80

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Solution

The fourth proportional to 78,804,568.80, 118,206,853.22 and 48,571,480.80 is: 72,857,221.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,804,568.80 : 118,206,853.22 = 48,571,480.80 : x
  2. Step 2: Convert to fraction form
    78,804,568.80/118,206,853.22 = 48,571,480.80/x
  3. Step 3: Cross multiply
    78,804,568.80x = 118,206,853.22 × 48,571,480.80
  4. Step 4: Simplify right side
    78,804,568.80x = 5,741,481,901,603,648
  5. Step 5: Solve for x
    x = 5,741,481,901,603,648/78,804,568.80
  6. Step 6: Final answer
    x = 72,857,221.21

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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.