Home / 15,230,630.71-21,018,148.25-8,261,290.47

Finding the Fourth Proportional to 15,230,630.71, 21,018,148.25 and 8,261,290.47

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Solution

The fourth proportional to 15,230,630.71, 21,018,148.25 and 8,261,290.47 is: 11,400,514.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,230,630.71 : 21,018,148.25 = 8,261,290.47 : x
  2. Step 2: Convert to fraction form
    15,230,630.71/21,018,148.25 = 8,261,290.47/x
  3. Step 3: Cross multiply
    15,230,630.71x = 21,018,148.25 × 8,261,290.47
  4. Step 4: Simplify right side
    15,230,630.71x = 173,637,027,872,283.78
  5. Step 5: Solve for x
    x = 173,637,027,872,283.78/15,230,630.71
  6. Step 6: Final answer
    x = 11,400,514.61

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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.