Home / 20,656,186.88-30,983,159.01-6,278,133.65

Finding the Fourth Proportional to 20,656,186.88, 30,983,159.01 and 6,278,133.65

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Solution

The fourth proportional to 20,656,186.88, 30,983,159.01 and 6,278,133.65 is: 9,416,859.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,656,186.88 : 30,983,159.01 = 6,278,133.65 : x
  2. Step 2: Convert to fraction form
    20,656,186.88/30,983,159.01 = 6,278,133.65/x
  3. Step 3: Cross multiply
    20,656,186.88x = 30,983,159.01 × 6,278,133.65
  4. Step 4: Simplify right side
    20,656,186.88x = 194,516,413,163,981.72
  5. Step 5: Solve for x
    x = 194,516,413,163,981.72/20,656,186.88
  6. Step 6: Final answer
    x = 9,416,859.67

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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.