Home / 168,381,756.60-252,785,211.30-90,720,511.80

Finding the Fourth Proportional to 168,381,756.60, 252,785,211.30 and 90,720,511.80

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Solution

The fourth proportional to 168,381,756.60, 252,785,211.30 and 90,720,511.80 is: 136,195,299.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,381,756.60 : 252,785,211.30 = 90,720,511.80 : x
  2. Step 2: Convert to fraction form
    168,381,756.60/252,785,211.30 = 90,720,511.80/x
  3. Step 3: Cross multiply
    168,381,756.60x = 252,785,211.30 × 90,720,511.80
  4. Step 4: Simplify right side
    168,381,756.60x = 22,932,803,744,607,144
  5. Step 5: Solve for x
    x = 22,932,803,744,607,144/168,381,756.60
  6. Step 6: Final answer
    x = 136,195,299.35

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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.