Home / 451,290,245.25-622,516,687.40-283,761,275.54

Finding the Fourth Proportional to 451,290,245.25, 622,516,687.40 and 283,761,275.54

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Solution

The fourth proportional to 451,290,245.25, 622,516,687.40 and 283,761,275.54 is: 391,424,656.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,290,245.25 : 622,516,687.40 = 283,761,275.54 : x
  2. Step 2: Convert to fraction form
    451,290,245.25/622,516,687.40 = 283,761,275.54/x
  3. Step 3: Cross multiply
    451,290,245.25x = 622,516,687.40 × 283,761,275.54
  4. Step 4: Simplify right side
    451,290,245.25x = 176,646,129,261,490,720
  5. Step 5: Solve for x
    x = 176,646,129,261,490,720/451,290,245.25
  6. Step 6: Final answer
    x = 391,424,656.58

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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.