Home / 472,392,858.40-708,589,287.60-165,645,113.20

Finding the Fourth Proportional to 472,392,858.40, 708,589,287.60 and 165,645,113.20

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Solution

The fourth proportional to 472,392,858.40, 708,589,287.60 and 165,645,113.20 is: 248,467,669.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,858.40 : 708,589,287.60 = 165,645,113.20 : x
  2. Step 2: Convert to fraction form
    472,392,858.40/708,589,287.60 = 165,645,113.20/x
  3. Step 3: Cross multiply
    472,392,858.40x = 708,589,287.60 × 165,645,113.20
  4. Step 4: Simplify right side
    472,392,858.40x = 117,374,352,756,809,344
  5. Step 5: Solve for x
    x = 117,374,352,756,809,344/472,392,858.40
  6. Step 6: Final answer
    x = 248,467,669.80

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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.