Home / 19,313,315.89-28,965,479.51-7,188,489.47

Finding the Fourth Proportional to 19,313,315.89, 28,965,479.51 and 7,188,489.47

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Solution

The fourth proportional to 19,313,315.89, 28,965,479.51 and 7,188,489.47 is: 10,781,061.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,313,315.89 : 28,965,479.51 = 7,188,489.47 : x
  2. Step 2: Convert to fraction form
    19,313,315.89/28,965,479.51 = 7,188,489.47/x
  3. Step 3: Cross multiply
    19,313,315.89x = 28,965,479.51 × 7,188,489.47
  4. Step 4: Simplify right side
    19,313,315.89x = 208,218,044,541,520.69
  5. Step 5: Solve for x
    x = 208,218,044,541,520.69/19,313,315.89
  6. Step 6: Final answer
    x = 10,781,061.41

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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.