Home / 458,689,932.98-632,974,290.97-280,372,386.59

Finding the Fourth Proportional to 458,689,932.98, 632,974,290.97 and 280,372,386.59

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Solution

The fourth proportional to 458,689,932.98, 632,974,290.97 and 280,372,386.59 is: 386,903,003.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,689,932.98 : 632,974,290.97 = 280,372,386.59 : x
  2. Step 2: Convert to fraction form
    458,689,932.98/632,974,290.97 = 280,372,386.59/x
  3. Step 3: Cross multiply
    458,689,932.98x = 632,974,290.97 × 280,372,386.59
  4. Step 4: Simplify right side
    458,689,932.98x = 177,468,512,608,406,944
  5. Step 5: Solve for x
    x = 177,468,512,608,406,944/458,689,932.98
  6. Step 6: Final answer
    x = 386,903,003.20

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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.