Home / 12,231,913.28-16,879,036.16-7,201,863.36

Finding the Fourth Proportional to 12,231,913.28, 16,879,036.16 and 7,201,863.36

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Solution

The fourth proportional to 12,231,913.28, 16,879,036.16 and 7,201,863.36 is: 9,937,980.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231,913.28 : 16,879,036.16 = 7,201,863.36 : x
  2. Step 2: Convert to fraction form
    12,231,913.28/16,879,036.16 = 7,201,863.36/x
  3. Step 3: Cross multiply
    12,231,913.28x = 16,879,036.16 × 7,201,863.36
  4. Step 4: Simplify right side
    12,231,913.28x = 121,560,512,072,819.11
  5. Step 5: Solve for x
    x = 121,560,512,072,819.11/12,231,913.28
  6. Step 6: Final answer
    x = 9,937,980.21

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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.