Home / 20,206,719.84-30,288,908.88-9,415,120.80

Finding the Fourth Proportional to 20,206,719.84, 30,288,908.88 and 9,415,120.80

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Solution

The fourth proportional to 20,206,719.84, 30,288,908.88 and 9,415,120.80 is: 14,112,816.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,206,719.84 : 30,288,908.88 = 9,415,120.80 : x
  2. Step 2: Convert to fraction form
    20,206,719.84/30,288,908.88 = 9,415,120.80/x
  3. Step 3: Cross multiply
    20,206,719.84x = 30,288,908.88 × 9,415,120.80
  4. Step 4: Simplify right side
    20,206,719.84x = 285,173,736,005,392.69
  5. Step 5: Solve for x
    x = 285,173,736,005,392.69/20,206,719.84
  6. Step 6: Final answer
    x = 14,112,816.84

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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.