Home / 160,705,771.20-221,767,761.60-87,366,945.60

Finding the Fourth Proportional to 160,705,771.20, 221,767,761.60 and 87,366,945.60

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Solution

The fourth proportional to 160,705,771.20, 221,767,761.60 and 87,366,945.60 is: 120,563,012.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,705,771.20 : 221,767,761.60 = 87,366,945.60 : x
  2. Step 2: Convert to fraction form
    160,705,771.20/221,767,761.60 = 87,366,945.60/x
  3. Step 3: Cross multiply
    160,705,771.20x = 221,767,761.60 × 87,366,945.60
  4. Step 4: Simplify right side
    160,705,771.20x = 19,375,171,963,540,968
  5. Step 5: Solve for x
    x = 19,375,171,963,540,968/160,705,771.20
  6. Step 6: Final answer
    x = 120,563,012.88

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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.