Home / 257,581,010.10-386,371,515.15-154,268,879.70

Finding the Fourth Proportional to 257,581,010.10, 386,371,515.15 and 154,268,879.70

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Solution

The fourth proportional to 257,581,010.10, 386,371,515.15 and 154,268,879.70 is: 231,403,319.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,581,010.10 : 386,371,515.15 = 154,268,879.70 : x
  2. Step 2: Convert to fraction form
    257,581,010.10/386,371,515.15 = 154,268,879.70/x
  3. Step 3: Cross multiply
    257,581,010.10x = 386,371,515.15 × 154,268,879.70
  4. Step 4: Simplify right side
    257,581,010.10x = 59,605,100,790,182,072
  5. Step 5: Solve for x
    x = 59,605,100,790,182,072/257,581,010.10
  6. Step 6: Final answer
    x = 231,403,319.55

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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.