Home / 7,251,931.86-10,007,685.91-3,989,080.94

Finding the Fourth Proportional to 7,251,931.86, 10,007,685.91 and 3,989,080.94

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Solution

The fourth proportional to 7,251,931.86, 10,007,685.91 and 3,989,080.94 is: 5,504,942.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,251,931.86 : 10,007,685.91 = 3,989,080.94 : x
  2. Step 2: Convert to fraction form
    7,251,931.86/10,007,685.91 = 3,989,080.94/x
  3. Step 3: Cross multiply
    7,251,931.86x = 10,007,685.91 × 3,989,080.94
  4. Step 4: Simplify right side
    7,251,931.86x = 39,921,469,117,087.55
  5. Step 5: Solve for x
    x = 39,921,469,117,087.55/7,251,931.86
  6. Step 6: Final answer
    x = 5,504,942.67

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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.