Home / 13,189,069.44-18,209,798.16-8,235,053.80

Finding the Fourth Proportional to 13,189,069.44, 18,209,798.16 and 8,235,053.80

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Solution

The fourth proportional to 13,189,069.44, 18,209,798.16 and 8,235,053.80 is: 11,369,920.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189,069.44 : 18,209,798.16 = 8,235,053.80 : x
  2. Step 2: Convert to fraction form
    13,189,069.44/18,209,798.16 = 8,235,053.80/x
  3. Step 3: Cross multiply
    13,189,069.44x = 18,209,798.16 × 8,235,053.80
  4. Step 4: Simplify right side
    13,189,069.44x = 149,958,667,534,741
  5. Step 5: Solve for x
    x = 149,958,667,534,741/13,189,069.44
  6. Step 6: Final answer
    x = 11,369,920.24

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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.