Home / 15,187,801.78-20,959,222.02-8,218,479.39

Finding the Fourth Proportional to 15,187,801.78, 20,959,222.02 and 8,218,479.39

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Solution

The fourth proportional to 15,187,801.78, 20,959,222.02 and 8,218,479.39 is: 11,341,531.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,187,801.78 : 20,959,222.02 = 8,218,479.39 : x
  2. Step 2: Convert to fraction form
    15,187,801.78/20,959,222.02 = 8,218,479.39/x
  3. Step 3: Cross multiply
    15,187,801.78x = 20,959,222.02 × 8,218,479.39
  4. Step 4: Simplify right side
    15,187,801.78x = 172,252,934,201,804.16
  5. Step 5: Solve for x
    x = 172,252,934,201,804.16/15,187,801.78
  6. Step 6: Final answer
    x = 11,341,531.62

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1.5x scale

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.