Home / 130,408,090.20-195,612,135.30-87,409,920.60

Finding the Fourth Proportional to 130,408,090.20, 195,612,135.30 and 87,409,920.60

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Solution

The fourth proportional to 130,408,090.20, 195,612,135.30 and 87,409,920.60 is: 131,114,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,408,090.20 : 195,612,135.30 = 87,409,920.60 : x
  2. Step 2: Convert to fraction form
    130,408,090.20/195,612,135.30 = 87,409,920.60/x
  3. Step 3: Cross multiply
    130,408,090.20x = 195,612,135.30 × 87,409,920.60
  4. Step 4: Simplify right side
    130,408,090.20x = 17,098,441,214,969,458
  5. Step 5: Solve for x
    x = 17,098,441,214,969,458/130,408,090.20
  6. Step 6: Final answer
    x = 131,114,880.90

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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.