Home / 472,394,839.40-708,592,259.10-265,770,578.60

Finding the Fourth Proportional to 472,394,839.40, 708,592,259.10 and 265,770,578.60

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Solution

The fourth proportional to 472,394,839.40, 708,592,259.10 and 265,770,578.60 is: 398,655,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,394,839.40 : 708,592,259.10 = 265,770,578.60 : x
  2. Step 2: Convert to fraction form
    472,394,839.40/708,592,259.10 = 265,770,578.60/x
  3. Step 3: Cross multiply
    472,394,839.40x = 708,592,259.10 × 265,770,578.60
  4. Step 4: Simplify right side
    472,394,839.40x = 188,322,974,692,488,128
  5. Step 5: Solve for x
    x = 188,322,974,692,488,128/472,394,839.40
  6. Step 6: Final answer
    x = 398,655,867.90

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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.