Home / 7,188,308.28-9,919,913.47-3,925,145.79

Finding the Fourth Proportional to 7,188,308.28, 9,919,913.47 and 3,925,145.79

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Solution

The fourth proportional to 7,188,308.28, 9,919,913.47 and 3,925,145.79 is: 5,416,727.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,188,308.28 : 9,919,913.47 = 3,925,145.79 : x
  2. Step 2: Convert to fraction form
    7,188,308.28/9,919,913.47 = 3,925,145.79/x
  3. Step 3: Cross multiply
    7,188,308.28x = 9,919,913.47 × 3,925,145.79
  4. Step 4: Simplify right side
    7,188,308.28x = 38,937,106,584,121.92
  5. Step 5: Solve for x
    x = 38,937,106,584,121.92/7,188,308.28
  6. Step 6: Final answer
    x = 5,416,727.42

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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.