Home / 12,889,653.96-17,787,367.76-7,088,435.72

Finding the Fourth Proportional to 12,889,653.96, 17,787,367.76 and 7,088,435.72

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Solution

The fourth proportional to 12,889,653.96, 17,787,367.76 and 7,088,435.72 is: 9,781,846.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889,653.96 : 17,787,367.76 = 7,088,435.72 : x
  2. Step 2: Convert to fraction form
    12,889,653.96/17,787,367.76 = 7,088,435.72/x
  3. Step 3: Cross multiply
    12,889,653.96x = 17,787,367.76 × 7,088,435.72
  4. Step 4: Simplify right side
    12,889,653.96x = 126,084,612,994,760.39
  5. Step 5: Solve for x
    x = 126,084,612,994,760.39/12,889,653.96
  6. Step 6: Final answer
    x = 9,781,846.23

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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.