Home / 378,627,350.35-518,717,050.23-364,468,448.20

Finding the Fourth Proportional to 378,627,350.35, 518,717,050.23 and 364,468,448.20

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Solution

The fourth proportional to 378,627,350.35, 518,717,050.23 and 364,468,448.20 is: 499,319,444.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,627,350.35 : 518,717,050.23 = 364,468,448.20 : x
  2. Step 2: Convert to fraction form
    378,627,350.35/518,717,050.23 = 364,468,448.20/x
  3. Step 3: Cross multiply
    378,627,350.35x = 518,717,050.23 × 364,468,448.20
  4. Step 4: Simplify right side
    378,627,350.35x = 189,055,998,351,019,264
  5. Step 5: Solve for x
    x = 189,055,998,351,019,264/378,627,350.35
  6. Step 6: Final answer
    x = 499,319,444.78

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.