Home / 67,260,640.80-100,890,961.20-18,745,982.40

Finding the Fourth Proportional to 67,260,640.80, 100,890,961.20 and 18,745,982.40

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Solution

The fourth proportional to 67,260,640.80, 100,890,961.20 and 18,745,982.40 is: 28,118,973.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,260,640.80 : 100,890,961.20 = 18,745,982.40 : x
  2. Step 2: Convert to fraction form
    67,260,640.80/100,890,961.20 = 18,745,982.40/x
  3. Step 3: Cross multiply
    67,260,640.80x = 100,890,961.20 × 18,745,982.40
  4. Step 4: Simplify right side
    67,260,640.80x = 1,891,300,182,974,282.75
  5. Step 5: Solve for x
    x = 1,891,300,182,974,282.75/67,260,640.80
  6. Step 6: Final answer
    x = 28,118,973.60

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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.