Home / 260,835,331.60-391,300,236.60-131,116,488.40

Finding the Fourth Proportional to 260,835,331.60, 391,300,236.60 and 131,116,488.40

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Solution

The fourth proportional to 260,835,331.60, 391,300,236.60 and 131,116,488.40 is: 196,698,478.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,835,331.60 : 391,300,236.60 = 131,116,488.40 : x
  2. Step 2: Convert to fraction form
    260,835,331.60/391,300,236.60 = 131,116,488.40/x
  3. Step 3: Cross multiply
    260,835,331.60x = 391,300,236.60 × 131,116,488.40
  4. Step 4: Simplify right side
    260,835,331.60x = 51,305,912,933,081,160
  5. Step 5: Solve for x
    x = 51,305,912,933,081,160/260,835,331.60
  6. Step 6: Final answer
    x = 196,698,478.76

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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.