Home / 418,605,377.48-627,965,528.17-142,182,382.21

Finding the Fourth Proportional to 418,605,377.48, 627,965,528.17 and 142,182,382.21

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Solution

The fourth proportional to 418,605,377.48, 627,965,528.17 and 142,182,382.21 is: 213,293,090.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,605,377.48 : 627,965,528.17 = 142,182,382.21 : x
  2. Step 2: Convert to fraction form
    418,605,377.48/627,965,528.17 = 142,182,382.21/x
  3. Step 3: Cross multiply
    418,605,377.48x = 627,965,528.17 × 142,182,382.21
  4. Step 4: Simplify right side
    418,605,377.48x = 89,285,634,740,971,456
  5. Step 5: Solve for x
    x = 89,285,634,740,971,456/418,605,377.48
  6. Step 6: Final answer
    x = 213,293,090.69

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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.