Home / 129,409,841.20-194,114,761.80-100,499,450.80

Finding the Fourth Proportional to 129,409,841.20, 194,114,761.80 and 100,499,450.80

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Solution

The fourth proportional to 129,409,841.20, 194,114,761.80 and 100,499,450.80 is: 150,749,176.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,409,841.20 : 194,114,761.80 = 100,499,450.80 : x
  2. Step 2: Convert to fraction form
    129,409,841.20/194,114,761.80 = 100,499,450.80/x
  3. Step 3: Cross multiply
    129,409,841.20x = 194,114,761.80 × 100,499,450.80
  4. Step 4: Simplify right side
    129,409,841.20x = 19,508,426,953,072,820
  5. Step 5: Solve for x
    x = 19,508,426,953,072,820/129,409,841.20
  6. Step 6: Final answer
    x = 150,749,176.20

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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.