Home / 260,265,758.40-390,126,244.32-87,682,933.44

Finding the Fourth Proportional to 260,265,758.40, 390,126,244.32 and 87,682,933.44

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Solution

The fourth proportional to 260,265,758.40, 390,126,244.32 and 87,682,933.44 is: 131,432,631.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,265,758.40 : 390,126,244.32 = 87,682,933.44 : x
  2. Step 2: Convert to fraction form
    260,265,758.40/390,126,244.32 = 87,682,933.44/x
  3. Step 3: Cross multiply
    260,265,758.40x = 390,126,244.32 × 87,682,933.44
  4. Step 4: Simplify right side
    260,265,758.40x = 34,207,413,513,907,736
  5. Step 5: Solve for x
    x = 34,207,413,513,907,736/260,265,758.40
  6. Step 6: Final answer
    x = 131,432,631.49

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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.