Home / 10,917,880.78-15,063,966.84-7,196,299.34

Finding the Fourth Proportional to 10,917,880.78, 15,063,966.84 and 7,196,299.34

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Solution

The fourth proportional to 10,917,880.78, 15,063,966.84 and 7,196,299.34 is: 9,929,107.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917,880.78 : 15,063,966.84 = 7,196,299.34 : x
  2. Step 2: Convert to fraction form
    10,917,880.78/15,063,966.84 = 7,196,299.34/x
  3. Step 3: Cross multiply
    10,917,880.78x = 15,063,966.84 × 7,196,299.34
  4. Step 4: Simplify right side
    10,917,880.78x = 108,404,814,628,473.88
  5. Step 5: Solve for x
    x = 108,404,814,628,473.88/10,917,880.78
  6. Step 6: Final answer
    x = 9,929,107.75

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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.