Home / 265,769,891.70-398,654,837.55-210,287,451.30

Finding the Fourth Proportional to 265,769,891.70, 398,654,837.55 and 210,287,451.30

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Solution

The fourth proportional to 265,769,891.70, 398,654,837.55 and 210,287,451.30 is: 315,431,176.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,769,891.70 : 398,654,837.55 = 210,287,451.30 : x
  2. Step 2: Convert to fraction form
    265,769,891.70/398,654,837.55 = 210,287,451.30/x
  3. Step 3: Cross multiply
    265,769,891.70x = 398,654,837.55 × 210,287,451.30
  4. Step 4: Simplify right side
    265,769,891.70x = 83,832,109,736,805,040
  5. Step 5: Solve for x
    x = 83,832,109,736,805,040/265,769,891.70
  6. Step 6: Final answer
    x = 315,431,176.95

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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.