Home / 19,943,388.20-29,918,175.31-8,428,903.94

Finding the Fourth Proportional to 19,943,388.20, 29,918,175.31 and 8,428,903.94

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Solution

The fourth proportional to 19,943,388.20, 29,918,175.31 and 8,428,903.94 is: 12,644,663.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943,388.20 : 29,918,175.31 = 8,428,903.94 : x
  2. Step 2: Convert to fraction form
    19,943,388.20/29,918,175.31 = 8,428,903.94/x
  3. Step 3: Cross multiply
    19,943,388.20x = 29,918,175.31 × 8,428,903.94
  4. Step 4: Simplify right side
    19,943,388.20x = 252,177,425,748,069.69
  5. Step 5: Solve for x
    x = 252,177,425,748,069.69/19,943,388.20
  6. Step 6: Final answer
    x = 12,644,663.14

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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.