Home / 129,336,919.80-194,005,379.70-121,684,169.40

Finding the Fourth Proportional to 129,336,919.80, 194,005,379.70 and 121,684,169.40

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Solution

The fourth proportional to 129,336,919.80, 194,005,379.70 and 121,684,169.40 is: 182,526,254.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,336,919.80 : 194,005,379.70 = 121,684,169.40 : x
  2. Step 2: Convert to fraction form
    129,336,919.80/194,005,379.70 = 121,684,169.40/x
  3. Step 3: Cross multiply
    129,336,919.80x = 194,005,379.70 × 121,684,169.40
  4. Step 4: Simplify right side
    129,336,919.80x = 23,607,383,487,926,120
  5. Step 5: Solve for x
    x = 23,607,383,487,926,120/129,336,919.80
  6. Step 6: Final answer
    x = 182,526,254.10

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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.