Home / 15,685,678.22-21,645,767.43-8,716,334.27

Finding the Fourth Proportional to 15,685,678.22, 21,645,767.43 and 8,716,334.27

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Solution

The fourth proportional to 15,685,678.22, 21,645,767.43 and 8,716,334.27 is: 12,028,280.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,685,678.22 : 21,645,767.43 = 8,716,334.27 : x
  2. Step 2: Convert to fraction form
    15,685,678.22/21,645,767.43 = 8,716,334.27/x
  3. Step 3: Cross multiply
    15,685,678.22x = 21,645,767.43 × 8,716,334.27
  4. Step 4: Simplify right side
    15,685,678.22x = 188,671,744,342,330
  5. Step 5: Solve for x
    x = 188,671,744,342,330/15,685,678.22
  6. Step 6: Final answer
    x = 12,028,280.94

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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.