Home / 129,037,061,998.80-193,555,592,998.20-102,915,673,966.80

Finding the Fourth Proportional to 129,037,061,998.80, 193,555,592,998.20 and 102,915,673,966.80

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Solution

The fourth proportional to 129,037,061,998.80, 193,555,592,998.20 and 102,915,673,966.80 is: 154,373,510,950.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,037,061,998.80 : 193,555,592,998.20 = 102,915,673,966.80 : x
  2. Step 2: Convert to fraction form
    129,037,061,998.80/193,555,592,998.20 = 102,915,673,966.80/x
  3. Step 3: Cross multiply
    129,037,061,998.80x = 193,555,592,998.20 × 102,915,673,966.80
  4. Step 4: Simplify right side
    129,037,061,998.80x = 19,919,904,303,453,388,668,928
  5. Step 5: Solve for x
    x = 19,919,904,303,453,388,668,928/129,037,061,998.80
  6. Step 6: Final answer
    x = 154,373,510,950.20

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Double scale
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1.5x scale

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.