Home / 428,426,615.92-591,241,201.14-242,781,458.80

Finding the Fourth Proportional to 428,426,615.92, 591,241,201.14 and 242,781,458.80

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Solution

The fourth proportional to 428,426,615.92, 591,241,201.14 and 242,781,458.80 is: 335,045,480.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,426,615.92 : 591,241,201.14 = 242,781,458.80 : x
  2. Step 2: Convert to fraction form
    428,426,615.92/591,241,201.14 = 242,781,458.80/x
  3. Step 3: Cross multiply
    428,426,615.92x = 591,241,201.14 × 242,781,458.80
  4. Step 4: Simplify right side
    428,426,615.92x = 143,542,401,315,433,424
  5. Step 5: Solve for x
    x = 143,542,401,315,433,424/428,426,615.92
  6. Step 6: Final answer
    x = 335,045,480.33

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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.