Home / 15,685,731.48-21,645,877.14-8,716,229.04

Finding the Fourth Proportional to 15,685,731.48, 21,645,877.14 and 8,716,229.04

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Solution

The fourth proportional to 15,685,731.48, 21,645,877.14 and 8,716,229.04 is: 12,028,155.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,685,731.48 : 21,645,877.14 = 8,716,229.04 : x
  2. Step 2: Convert to fraction form
    15,685,731.48/21,645,877.14 = 8,716,229.04/x
  3. Step 3: Cross multiply
    15,685,731.48x = 21,645,877.14 × 8,716,229.04
  4. Step 4: Simplify right side
    15,685,731.48x = 188,670,422,923,940.12
  5. Step 5: Solve for x
    x = 188,670,422,923,940.12/15,685,731.48
  6. Step 6: Final answer
    x = 12,028,155.85

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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.