Home / 12,855,405.96-17,740,411.56-7,054,284.78

Finding the Fourth Proportional to 12,855,405.96, 17,740,411.56 and 7,054,284.78

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Solution

The fourth proportional to 12,855,405.96, 17,740,411.56 and 7,054,284.78 is: 9,734,886.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,855,405.96 : 17,740,411.56 = 7,054,284.78 : x
  2. Step 2: Convert to fraction form
    12,855,405.96/17,740,411.56 = 7,054,284.78/x
  3. Step 3: Cross multiply
    12,855,405.96x = 17,740,411.56 × 7,054,284.78
  4. Step 4: Simplify right side
    12,855,405.96x = 125,145,915,258,644.05
  5. Step 5: Solve for x
    x = 125,145,915,258,644.05/12,855,405.96
  6. Step 6: Final answer
    x = 9,734,886.29

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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.