Home / 11,116,873.78-15,329,103.34-7,242,209.62

Finding the Fourth Proportional to 11,116,873.78, 15,329,103.34 and 7,242,209.62

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Solution

The fourth proportional to 11,116,873.78, 15,329,103.34 and 7,242,209.62 is: 9,986,312.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,116,873.78 : 15,329,103.34 = 7,242,209.62 : x
  2. Step 2: Convert to fraction form
    11,116,873.78/15,329,103.34 = 7,242,209.62/x
  3. Step 3: Cross multiply
    11,116,873.78x = 15,329,103.34 × 7,242,209.62
  4. Step 4: Simplify right side
    11,116,873.78x = 111,016,579,674,922.12
  5. Step 5: Solve for x
    x = 111,016,579,674,922.12/11,116,873.78
  6. Step 6: Final answer
    x = 9,986,312.87

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Double scale
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1.5x scale

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.