Home / 13,211,763.20-19,836,076.80-8,448,934.40

Finding the Fourth Proportional to 13,211,763.20, 19,836,076.80 and 8,448,934.40

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Solution

The fourth proportional to 13,211,763.20, 19,836,076.80 and 8,448,934.40 is: 12,685,188.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,211,763.20 : 19,836,076.80 = 8,448,934.40 : x
  2. Step 2: Convert to fraction form
    13,211,763.20/19,836,076.80 = 8,448,934.40/x
  3. Step 3: Cross multiply
    13,211,763.20x = 19,836,076.80 × 8,448,934.40
  4. Step 4: Simplify right side
    13,211,763.20x = 167,593,711,636,561.94
  5. Step 5: Solve for x
    x = 167,593,711,636,561.94/13,211,763.20
  6. Step 6: Final answer
    x = 12,685,188.88

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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.