Home / 414,476,954.68-621,672,827.10-138,098,317.88

Finding the Fourth Proportional to 414,476,954.68, 621,672,827.10 and 138,098,317.88

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Solution

The fourth proportional to 414,476,954.68, 621,672,827.10 and 138,098,317.88 is: 207,133,281.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,476,954.68 : 621,672,827.10 = 138,098,317.88 : x
  2. Step 2: Convert to fraction form
    414,476,954.68/621,672,827.10 = 138,098,317.88/x
  3. Step 3: Cross multiply
    414,476,954.68x = 621,672,827.10 × 138,098,317.88
  4. Step 4: Simplify right side
    414,476,954.68x = 85,851,971,694,214,080
  5. Step 5: Solve for x
    x = 85,851,971,694,214,080/414,476,954.68
  6. Step 6: Final answer
    x = 207,133,281.42

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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.