Home / 12,286,731.51-16,959,062.34-7,131,753.81

Finding the Fourth Proportional to 12,286,731.51, 16,959,062.34 and 7,131,753.81

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Solution

The fourth proportional to 12,286,731.51, 16,959,062.34 and 7,131,753.81 is: 9,843,778.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286,731.51 : 16,959,062.34 = 7,131,753.81 : x
  2. Step 2: Convert to fraction form
    12,286,731.51/16,959,062.34 = 7,131,753.81/x
  3. Step 3: Cross multiply
    12,286,731.51x = 16,959,062.34 × 7,131,753.81
  4. Step 4: Simplify right side
    12,286,731.51x = 120,947,857,457,322.50
  5. Step 5: Solve for x
    x = 120,947,857,457,322.50/12,286,731.51
  6. Step 6: Final answer
    x = 9,843,778.01

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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.