Home / 498,346,820.82-687,725,829.18-275,333,631.57

Finding the Fourth Proportional to 498,346,820.82, 687,725,829.18 and 275,333,631.57

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Solution

The fourth proportional to 498,346,820.82, 687,725,829.18 and 275,333,631.57 is: 379,964,398.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,346,820.82 : 687,725,829.18 = 275,333,631.57 : x
  2. Step 2: Convert to fraction form
    498,346,820.82/687,725,829.18 = 275,333,631.57/x
  3. Step 3: Cross multiply
    498,346,820.82x = 687,725,829.18 × 275,333,631.57
  4. Step 4: Simplify right side
    498,346,820.82x = 189,354,050,072,618,848
  5. Step 5: Solve for x
    x = 189,354,050,072,618,848/498,346,820.82
  6. Step 6: Final answer
    x = 379,964,398.61

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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.