Home / 129,405,256.32-194,109,600.60-43,143,690.78

Finding the Fourth Proportional to 129,405,256.32, 194,109,600.60 and 43,143,690.78

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Solution

The fourth proportional to 129,405,256.32, 194,109,600.60 and 43,143,690.78 is: 64,716,108.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,405,256.32 : 194,109,600.60 = 43,143,690.78 : x
  2. Step 2: Convert to fraction form
    129,405,256.32/194,109,600.60 = 43,143,690.78/x
  3. Step 3: Cross multiply
    129,405,256.32x = 194,109,600.60 × 43,143,690.78
  4. Step 4: Simplify right side
    129,405,256.32x = 8,374,604,585,715,702
  5. Step 5: Solve for x
    x = 8,374,604,585,715,702/129,405,256.32
  6. Step 6: Final answer
    x = 64,716,108.32

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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.