Home / 290,513,933.28-400,897,164.96-158,352,022.08

Finding the Fourth Proportional to 290,513,933.28, 400,897,164.96 and 158,352,022.08

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Solution

The fourth proportional to 290,513,933.28, 400,897,164.96 and 158,352,022.08 is: 218,519,215.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,513,933.28 : 400,897,164.96 = 158,352,022.08 : x
  2. Step 2: Convert to fraction form
    290,513,933.28/400,897,164.96 = 158,352,022.08/x
  3. Step 3: Cross multiply
    290,513,933.28x = 400,897,164.96 × 158,352,022.08
  4. Step 4: Simplify right side
    290,513,933.28x = 63,482,876,717,555,328
  5. Step 5: Solve for x
    x = 63,482,876,717,555,328/290,513,933.28
  6. Step 6: Final answer
    x = 218,519,215.24

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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.