Home / 326,599,539.40-489,899,309.10-217,760,422.60

Finding the Fourth Proportional to 326,599,539.40, 489,899,309.10 and 217,760,422.60

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Solution

The fourth proportional to 326,599,539.40, 489,899,309.10 and 217,760,422.60 is: 326,640,633.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,599,539.40 : 489,899,309.10 = 217,760,422.60 : x
  2. Step 2: Convert to fraction form
    326,599,539.40/489,899,309.10 = 217,760,422.60/x
  3. Step 3: Cross multiply
    326,599,539.40x = 489,899,309.10 × 217,760,422.60
  4. Step 4: Simplify right side
    326,599,539.40x = 106,680,680,581,064,032
  5. Step 5: Solve for x
    x = 106,680,680,581,064,032/326,599,539.40
  6. Step 6: Final answer
    x = 326,640,633.90

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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.