Home / 85,276,616.80-127,914,925.20-21,451,208.80

Finding the Fourth Proportional to 85,276,616.80, 127,914,925.20 and 21,451,208.80

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Solution

The fourth proportional to 85,276,616.80, 127,914,925.20 and 21,451,208.80 is: 32,176,813.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,276,616.80 : 127,914,925.20 = 21,451,208.80 : x
  2. Step 2: Convert to fraction form
    85,276,616.80/127,914,925.20 = 21,451,208.80/x
  3. Step 3: Cross multiply
    85,276,616.80x = 127,914,925.20 × 21,451,208.80
  4. Step 4: Simplify right side
    85,276,616.80x = 2,743,929,769,101,582
  5. Step 5: Solve for x
    x = 2,743,929,769,101,582/85,276,616.80
  6. Step 6: Final answer
    x = 32,176,813.20

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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.