Home / 7,176,898-9,904,358.40-3,913,891.56

Finding the Fourth Proportional to 7,176,898, 9,904,358.40 and 3,913,891.56

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Solution

The fourth proportional to 7,176,898, 9,904,358.40 and 3,913,891.56 is: 5,401,300.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176,898 : 9,904,358.40 = 3,913,891.56 : x
  2. Step 2: Convert to fraction form
    7,176,898/9,904,358.40 = 3,913,891.56/x
  3. Step 3: Cross multiply
    7,176,898x = 9,904,358.40 × 3,913,891.56
  4. Step 4: Simplify right side
    7,176,898x = 38,764,584,748,975.11
  5. Step 5: Solve for x
    x = 38,764,584,748,975.11/7,176,898
  6. Step 6: Final answer
    x = 5,401,300.78

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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.