Home / 518,319,181.15-777,478,771.73-324,608,936.65

Finding the Fourth Proportional to 518,319,181.15, 777,478,771.73 and 324,608,936.65

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Solution

The fourth proportional to 518,319,181.15, 777,478,771.73 and 324,608,936.65 is: 486,913,404.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,319,181.15 : 777,478,771.73 = 324,608,936.65 : x
  2. Step 2: Convert to fraction form
    518,319,181.15/777,478,771.73 = 324,608,936.65/x
  3. Step 3: Cross multiply
    518,319,181.15x = 777,478,771.73 × 324,608,936.65
  4. Step 4: Simplify right side
    518,319,181.15x = 252,376,557,357,600,320
  5. Step 5: Solve for x
    x = 252,376,557,357,600,320/518,319,181.15
  6. Step 6: Final answer
    x = 486,913,404.98

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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.