Home / 278,718,882.10-418,051,308.21-84,632,003.38

Finding the Fourth Proportional to 278,718,882.10, 418,051,308.21 and 84,632,003.38

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Solution

The fourth proportional to 278,718,882.10, 418,051,308.21 and 84,632,003.38 is: 126,939,802.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,718,882.10 : 418,051,308.21 = 84,632,003.38 : x
  2. Step 2: Convert to fraction form
    278,718,882.10/418,051,308.21 = 84,632,003.38/x
  3. Step 3: Cross multiply
    278,718,882.10x = 418,051,308.21 × 84,632,003.38
  4. Step 4: Simplify right side
    278,718,882.10x = 35,380,519,729,442,136
  5. Step 5: Solve for x
    x = 35,380,519,729,442,136/278,718,882.10
  6. Step 6: Final answer
    x = 126,939,802.08

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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.