Home / 20,619,680.72-30,930,868.92-5,473,207.76

Finding the Fourth Proportional to 20,619,680.72, 30,930,868.92 and 5,473,207.76

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Solution

The fourth proportional to 20,619,680.72, 30,930,868.92 and 5,473,207.76 is: 8,210,169.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,619,680.72 : 30,930,868.92 = 5,473,207.76 : x
  2. Step 2: Convert to fraction form
    20,619,680.72/30,930,868.92 = 5,473,207.76/x
  3. Step 3: Cross multiply
    20,619,680.72x = 30,930,868.92 × 5,473,207.76
  4. Step 4: Simplify right side
    20,619,680.72x = 169,291,071,796,486.81
  5. Step 5: Solve for x
    x = 169,291,071,796,486.81/20,619,680.72
  6. Step 6: Final answer
    x = 8,210,169.41

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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.