Home / 12,649,162.96-18,943,155.60-7,241,411.80

Finding the Fourth Proportional to 12,649,162.96, 18,943,155.60 and 7,241,411.80

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Solution

The fourth proportional to 12,649,162.96, 18,943,155.60 and 7,241,411.80 is: 10,844,606.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,649,162.96 : 18,943,155.60 = 7,241,411.80 : x
  2. Step 2: Convert to fraction form
    12,649,162.96/18,943,155.60 = 7,241,411.80/x
  3. Step 3: Cross multiply
    12,649,162.96x = 18,943,155.60 × 7,241,411.80
  4. Step 4: Simplify right side
    12,649,162.96x = 137,175,190,491,076.09
  5. Step 5: Solve for x
    x = 137,175,190,491,076.09/12,649,162.96
  6. Step 6: Final answer
    x = 10,844,606.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.