Home / 15,165,449.30-20,923,212.66-8,634,459.80

Finding the Fourth Proportional to 15,165,449.30, 20,923,212.66 and 8,634,459.80

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Solution

The fourth proportional to 15,165,449.30, 20,923,212.66 and 8,634,459.80 is: 11,912,646.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,165,449.30 : 20,923,212.66 = 8,634,459.80 : x
  2. Step 2: Convert to fraction form
    15,165,449.30/20,923,212.66 = 8,634,459.80/x
  3. Step 3: Cross multiply
    15,165,449.30x = 20,923,212.66 × 8,634,459.80
  4. Step 4: Simplify right side
    15,165,449.30x = 180,660,638,599,621.09
  5. Step 5: Solve for x
    x = 180,660,638,599,621.09/15,165,449.30
  6. Step 6: Final answer
    x = 11,912,646.64

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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.