Home / 81,414,154.14-122,120,609.13-20,829,782.94

Finding the Fourth Proportional to 81,414,154.14, 122,120,609.13 and 20,829,782.94

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Solution

The fourth proportional to 81,414,154.14, 122,120,609.13 and 20,829,782.94 is: 31,244,515.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,414,154.14 : 122,120,609.13 = 20,829,782.94 : x
  2. Step 2: Convert to fraction form
    81,414,154.14/122,120,609.13 = 20,829,782.94/x
  3. Step 3: Cross multiply
    81,414,154.14x = 122,120,609.13 × 20,829,782.94
  4. Step 4: Simplify right side
    81,414,154.14x = 2,543,745,780,678,482.50
  5. Step 5: Solve for x
    x = 2,543,745,780,678,482.50/81,414,154.14
  6. Step 6: Final answer
    x = 31,244,515.25

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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.