Home / 8,615,891.14-11,891,955.96-5,355,168.52

Finding the Fourth Proportional to 8,615,891.14, 11,891,955.96 and 5,355,168.52

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Solution

The fourth proportional to 8,615,891.14, 11,891,955.96 and 5,355,168.52 is: 7,391,391.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,615,891.14 : 11,891,955.96 = 5,355,168.52 : x
  2. Step 2: Convert to fraction form
    8,615,891.14/11,891,955.96 = 5,355,168.52/x
  3. Step 3: Cross multiply
    8,615,891.14x = 11,891,955.96 × 5,355,168.52
  4. Step 4: Simplify right side
    8,615,891.14x = 63,683,428,198,218.38
  5. Step 5: Solve for x
    x = 63,683,428,198,218.38/8,615,891.14
  6. Step 6: Final answer
    x = 7,391,391.92

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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.