Home / 12,097,246.80-18,166,865.40-6,428,542.80

Finding the Fourth Proportional to 12,097,246.80, 18,166,865.40 and 6,428,542.80

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Solution

The fourth proportional to 12,097,246.80, 18,166,865.40 and 6,428,542.80 is: 9,653,971.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097,246.80 : 18,166,865.40 = 6,428,542.80 : x
  2. Step 2: Convert to fraction form
    12,097,246.80/18,166,865.40 = 6,428,542.80/x
  3. Step 3: Cross multiply
    12,097,246.80x = 18,166,865.40 × 6,428,542.80
  4. Step 4: Simplify right side
    12,097,246.80x = 116,786,471,765,739.11
  5. Step 5: Solve for x
    x = 116,786,471,765,739.11/12,097,246.80
  6. Step 6: Final answer
    x = 9,653,971.16

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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.