Home / 78,804,416.80-118,206,625.20-48,571,328.80

Finding the Fourth Proportional to 78,804,416.80, 118,206,625.20 and 48,571,328.80

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Solution

The fourth proportional to 78,804,416.80, 118,206,625.20 and 48,571,328.80 is: 72,856,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,804,416.80 : 118,206,625.20 = 48,571,328.80 : x
  2. Step 2: Convert to fraction form
    78,804,416.80/118,206,625.20 = 48,571,328.80/x
  3. Step 3: Cross multiply
    78,804,416.80x = 118,206,625.20 × 48,571,328.80
  4. Step 4: Simplify right side
    78,804,416.80x = 5,741,452,858,927,566
  5. Step 5: Solve for x
    x = 5,741,452,858,927,566/78,804,416.80
  6. Step 6: Final answer
    x = 72,856,993.20

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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.