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Finding the Fourth Proportional to 609,409,959.40, 913,992,722.22 and 298,383,567.40

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Solution

The fourth proportional to 609,409,959.40, 913,992,722.22 and 298,383,567.40 is: 447,515,510.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,409,959.40 : 913,992,722.22 = 298,383,567.40 : x
  2. Step 2: Convert to fraction form
    609,409,959.40/913,992,722.22 = 298,383,567.40/x
  3. Step 3: Cross multiply
    609,409,959.40x = 913,992,722.22 × 298,383,567.40
  4. Step 4: Simplify right side
    609,409,959.40x = 272,720,409,033,640,832
  5. Step 5: Solve for x
    x = 272,720,409,033,640,832/609,409,959.40
  6. Step 6: Final answer
    x = 447,515,510.42

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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.