Home / 15,188,648.41-20,960,334.80-8,313,130.47

Finding the Fourth Proportional to 15,188,648.41, 20,960,334.80 and 8,313,130.47

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Solution

The fourth proportional to 15,188,648.41, 20,960,334.80 and 8,313,130.47 is: 11,472,120.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,188,648.41 : 20,960,334.80 = 8,313,130.47 : x
  2. Step 2: Convert to fraction form
    15,188,648.41/20,960,334.80 = 8,313,130.47/x
  3. Step 3: Cross multiply
    15,188,648.41x = 20,960,334.80 × 8,313,130.47
  4. Step 4: Simplify right side
    15,188,648.41x = 174,245,997,887,281.34
  5. Step 5: Solve for x
    x = 174,245,997,887,281.34/15,188,648.41
  6. Step 6: Final answer
    x = 11,472,120.05

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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.