Home / 55,120,512.80-82,680,769.20-16,781,722.40

Finding the Fourth Proportional to 55,120,512.80, 82,680,769.20 and 16,781,722.40

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Solution

The fourth proportional to 55,120,512.80, 82,680,769.20 and 16,781,722.40 is: 25,172,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,120,512.80 : 82,680,769.20 = 16,781,722.40 : x
  2. Step 2: Convert to fraction form
    55,120,512.80/82,680,769.20 = 16,781,722.40/x
  3. Step 3: Cross multiply
    55,120,512.80x = 82,680,769.20 × 16,781,722.40
  4. Step 4: Simplify right side
    55,120,512.80x = 1,387,525,716,532,870
  5. Step 5: Solve for x
    x = 1,387,525,716,532,870/55,120,512.80
  6. Step 6: Final answer
    x = 25,172,583.60

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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.