Home / 129,409,852.20-194,114,778.30-100,499,461.80

Finding the Fourth Proportional to 129,409,852.20, 194,114,778.30 and 100,499,461.80

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Solution

The fourth proportional to 129,409,852.20, 194,114,778.30 and 100,499,461.80 is: 150,749,192.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,409,852.20 : 194,114,778.30 = 100,499,461.80 : x
  2. Step 2: Convert to fraction form
    129,409,852.20/194,114,778.30 = 100,499,461.80/x
  3. Step 3: Cross multiply
    129,409,852.20x = 194,114,778.30 × 100,499,461.80
  4. Step 4: Simplify right side
    129,409,852.20x = 19,508,430,746,576,320
  5. Step 5: Solve for x
    x = 19,508,430,746,576,320/129,409,852.20
  6. Step 6: Final answer
    x = 150,749,192.70

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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.