Home / 129,487,004.60-194,230,506.90-115,378,230.20

Finding the Fourth Proportional to 129,487,004.60, 194,230,506.90 and 115,378,230.20

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Solution

The fourth proportional to 129,487,004.60, 194,230,506.90 and 115,378,230.20 is: 173,067,345.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,487,004.60 : 194,230,506.90 = 115,378,230.20 : x
  2. Step 2: Convert to fraction form
    129,487,004.60/194,230,506.90 = 115,378,230.20/x
  3. Step 3: Cross multiply
    129,487,004.60x = 194,230,506.90 × 115,378,230.20
  4. Step 4: Simplify right side
    129,487,004.60x = 22,409,972,136,970,888
  5. Step 5: Solve for x
    x = 22,409,972,136,970,888/129,487,004.60
  6. Step 6: Final answer
    x = 173,067,345.30

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1.5x scale

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.