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Finding the Fourth Proportional to 441,591,605.70, 662,387,408.55 and 438,568,296.90

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Solution

The fourth proportional to 441,591,605.70, 662,387,408.55 and 438,568,296.90 is: 657,852,445.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,591,605.70 : 662,387,408.55 = 438,568,296.90 : x
  2. Step 2: Convert to fraction form
    441,591,605.70/662,387,408.55 = 438,568,296.90/x
  3. Step 3: Cross multiply
    441,591,605.70x = 662,387,408.55 × 438,568,296.90
  4. Step 4: Simplify right side
    441,591,605.70x = 290,502,117,655,777,984
  5. Step 5: Solve for x
    x = 290,502,117,655,777,984/441,591,605.70
  6. Step 6: Final answer
    x = 657,852,445.35

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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.