Home / 15,001,671.36-20,702,405.88-8,126,153.42

Finding the Fourth Proportional to 15,001,671.36, 20,702,405.88 and 8,126,153.42

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Solution

The fourth proportional to 15,001,671.36, 20,702,405.88 and 8,126,153.42 is: 11,214,145.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001,671.36 : 20,702,405.88 = 8,126,153.42 : x
  2. Step 2: Convert to fraction form
    15,001,671.36/20,702,405.88 = 8,126,153.42/x
  3. Step 3: Cross multiply
    15,001,671.36x = 20,702,405.88 × 8,126,153.42
  4. Step 4: Simplify right side
    15,001,671.36x = 168,230,926,343,990.09
  5. Step 5: Solve for x
    x = 168,230,926,343,990.09/15,001,671.36
  6. Step 6: Final answer
    x = 11,214,145.56

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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.