Home / 40,170,234.05-55,434,958.71-21,835,519.55

Finding the Fourth Proportional to 40,170,234.05, 55,434,958.71 and 21,835,519.55

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Solution

The fourth proportional to 40,170,234.05, 55,434,958.71 and 21,835,519.55 is: 30,133,036.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,170,234.05 : 55,434,958.71 = 21,835,519.55 : x
  2. Step 2: Convert to fraction form
    40,170,234.05/55,434,958.71 = 21,835,519.55/x
  3. Step 3: Cross multiply
    40,170,234.05x = 55,434,958.71 × 21,835,519.55
  4. Step 4: Simplify right side
    40,170,234.05x = 1,210,451,124,665,647.75
  5. Step 5: Solve for x
    x = 1,210,451,124,665,647.75/40,170,234.05
  6. Step 6: Final answer
    x = 30,133,036.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.