Home / 67,217,680.40-100,838,962.20-21,780,957.20

Finding the Fourth Proportional to 67,217,680.40, 100,838,962.20 and 21,780,957.20

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Solution

The fourth proportional to 67,217,680.40, 100,838,962.20 and 21,780,957.20 is: 32,675,467.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,217,680.40 : 100,838,962.20 = 21,780,957.20 : x
  2. Step 2: Convert to fraction form
    67,217,680.40/100,838,962.20 = 21,780,957.20/x
  3. Step 3: Cross multiply
    67,217,680.40x = 100,838,962.20 × 21,780,957.20
  4. Step 4: Simplify right side
    67,217,680.40x = 2,196,369,119,770,617.75
  5. Step 5: Solve for x
    x = 2,196,369,119,770,617.75/67,217,680.40
  6. Step 6: Final answer
    x = 32,675,467.33

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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.