Home / 68,220,167.70-102,330,251.55-19,699,604.40

Finding the Fourth Proportional to 68,220,167.70, 102,330,251.55 and 19,699,604.40

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Solution

The fourth proportional to 68,220,167.70, 102,330,251.55 and 19,699,604.40 is: 29,549,406.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,220,167.70 : 102,330,251.55 = 19,699,604.40 : x
  2. Step 2: Convert to fraction form
    68,220,167.70/102,330,251.55 = 19,699,604.40/x
  3. Step 3: Cross multiply
    68,220,167.70x = 102,330,251.55 × 19,699,604.40
  4. Step 4: Simplify right side
    68,220,167.70x = 2,015,865,473,687,486.50
  5. Step 5: Solve for x
    x = 2,015,865,473,687,486.50/68,220,167.70
  6. Step 6: Final answer
    x = 29,549,406.60

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Similar ratio
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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.