Home / 129,435,659.93-194,154,215.69-43,173,829.86

Finding the Fourth Proportional to 129,435,659.93, 194,154,215.69 and 43,173,829.86

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Solution

The fourth proportional to 129,435,659.93, 194,154,215.69 and 43,173,829.86 is: 64,760,986.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,435,659.93 : 194,154,215.69 = 43,173,829.86 : x
  2. Step 2: Convert to fraction form
    129,435,659.93/194,154,215.69 = 43,173,829.86/x
  3. Step 3: Cross multiply
    129,435,659.93x = 194,154,215.69 × 43,173,829.86
  4. Step 4: Simplify right side
    129,435,659.93x = 8,382,381,074,585,933
  5. Step 5: Solve for x
    x = 8,382,381,074,585,933/129,435,659.93
  6. Step 6: Final answer
    x = 64,760,986.88

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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.