Home / 7,908,679.78-11,862,908.88-3,116,410.72

Finding the Fourth Proportional to 7,908,679.78, 11,862,908.88 and 3,116,410.72

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Solution

The fourth proportional to 7,908,679.78, 11,862,908.88 and 3,116,410.72 is: 4,674,572.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908,679.78 : 11,862,908.88 = 3,116,410.72 : x
  2. Step 2: Convert to fraction form
    7,908,679.78/11,862,908.88 = 3,116,410.72/x
  3. Step 3: Cross multiply
    7,908,679.78x = 11,862,908.88 × 3,116,410.72
  4. Step 4: Simplify right side
    7,908,679.78x = 36,969,696,404,015.20
  5. Step 5: Solve for x
    x = 36,969,696,404,015.20/7,908,679.78
  6. Step 6: Final answer
    x = 4,674,572.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.