Home / 12,228,258.96-16,878,758.13-7,877,331.81

Finding the Fourth Proportional to 12,228,258.96, 16,878,758.13 and 7,877,331.81

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Solution

The fourth proportional to 12,228,258.96, 16,878,758.13 and 7,877,331.81 is: 10,873,140.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,228,258.96 : 16,878,758.13 = 7,877,331.81 : x
  2. Step 2: Convert to fraction form
    12,228,258.96/16,878,758.13 = 7,877,331.81/x
  3. Step 3: Cross multiply
    12,228,258.96x = 16,878,758.13 × 7,877,331.81
  4. Step 4: Simplify right side
    12,228,258.96x = 132,959,578,330,745.09
  5. Step 5: Solve for x
    x = 132,959,578,330,745.09/12,228,258.96
  6. Step 6: Final answer
    x = 10,873,140.55

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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.