Home / 513,215,999.10-769,823,998.65-149,747,096.70

Finding the Fourth Proportional to 513,215,999.10, 769,823,998.65 and 149,747,096.70

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Solution

The fourth proportional to 513,215,999.10, 769,823,998.65 and 149,747,096.70 is: 224,620,645.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,215,999.10 : 769,823,998.65 = 149,747,096.70 : x
  2. Step 2: Convert to fraction form
    513,215,999.10/769,823,998.65 = 149,747,096.70/x
  3. Step 3: Cross multiply
    513,215,999.10x = 769,823,998.65 × 149,747,096.70
  4. Step 4: Simplify right side
    513,215,999.10x = 115,278,908,767,822,208
  5. Step 5: Solve for x
    x = 115,278,908,767,822,208/513,215,999.10
  6. Step 6: Final answer
    x = 224,620,645.05

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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.