Home / 299,744,681.38-413,418,632.61-257,998,661.62

Finding the Fourth Proportional to 299,744,681.38, 413,418,632.61 and 257,998,661.62

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Solution

The fourth proportional to 299,744,681.38, 413,418,632.61 and 257,998,661.62 is: 355,841,022.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,744,681.38 : 413,418,632.61 = 257,998,661.62 : x
  2. Step 2: Convert to fraction form
    299,744,681.38/413,418,632.61 = 257,998,661.62/x
  3. Step 3: Cross multiply
    299,744,681.38x = 413,418,632.61 × 257,998,661.62
  4. Step 4: Simplify right side
    299,744,681.38x = 106,661,453,902,150,496
  5. Step 5: Solve for x
    x = 106,661,453,902,150,496/299,744,681.38
  6. Step 6: Final answer
    x = 355,841,022.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.