Home / 156,870,021.20-235,305,031.80-80,167,557.20

Finding the Fourth Proportional to 156,870,021.20, 235,305,031.80 and 80,167,557.20

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Solution

The fourth proportional to 156,870,021.20, 235,305,031.80 and 80,167,557.20 is: 120,251,335.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,870,021.20 : 235,305,031.80 = 80,167,557.20 : x
  2. Step 2: Convert to fraction form
    156,870,021.20/235,305,031.80 = 80,167,557.20/x
  3. Step 3: Cross multiply
    156,870,021.20x = 235,305,031.80 × 80,167,557.20
  4. Step 4: Simplify right side
    156,870,021.20x = 18,863,829,596,274,320
  5. Step 5: Solve for x
    x = 18,863,829,596,274,320/156,870,021.20
  6. Step 6: Final answer
    x = 120,251,335.80

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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.