Home / 465,664,167.10-698,496,250.65-428,040,768.70

Finding the Fourth Proportional to 465,664,167.10, 698,496,250.65 and 428,040,768.70

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Solution

The fourth proportional to 465,664,167.10, 698,496,250.65 and 428,040,768.70 is: 642,061,153.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,664,167.10 : 698,496,250.65 = 428,040,768.70 : x
  2. Step 2: Convert to fraction form
    465,664,167.10/698,496,250.65 = 428,040,768.70/x
  3. Step 3: Cross multiply
    465,664,167.10x = 698,496,250.65 × 428,040,768.70
  4. Step 4: Simplify right side
    465,664,167.10x = 298,984,872,062,293,888
  5. Step 5: Solve for x
    x = 298,984,872,062,293,888/465,664,167.10
  6. Step 6: Final answer
    x = 642,061,153.05

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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.