Home / 702,732,435.15-969,770,850.81-389,486,872.11

Finding the Fourth Proportional to 702,732,435.15, 969,770,850.81 and 389,486,872.11

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Solution

The fourth proportional to 702,732,435.15, 969,770,850.81 and 389,486,872.11 is: 537,491,933.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,732,435.15 : 969,770,850.81 = 389,486,872.11 : x
  2. Step 2: Convert to fraction form
    702,732,435.15/969,770,850.81 = 389,486,872.11/x
  3. Step 3: Cross multiply
    702,732,435.15x = 969,770,850.81 × 389,486,872.11
  4. Step 4: Simplify right side
    702,732,435.15x = 377,713,015,345,440,320
  5. Step 5: Solve for x
    x = 377,713,015,345,440,320/702,732,435.15
  6. Step 6: Final answer
    x = 537,491,933.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.