Home / 13,329,647.86-18,394,909.55-7,218,076.36

Finding the Fourth Proportional to 13,329,647.86, 18,394,909.55 and 7,218,076.36

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Solution

The fourth proportional to 13,329,647.86, 18,394,909.55 and 7,218,076.36 is: 9,960,942.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329,647.86 : 18,394,909.55 = 7,218,076.36 : x
  2. Step 2: Convert to fraction form
    13,329,647.86/18,394,909.55 = 7,218,076.36/x
  3. Step 3: Cross multiply
    13,329,647.86x = 18,394,909.55 × 7,218,076.36
  4. Step 4: Simplify right side
    13,329,647.86x = 132,775,861,767,193.25
  5. Step 5: Solve for x
    x = 132,775,861,767,193.25/13,329,647.86
  6. Step 6: Final answer
    x = 9,960,942.94

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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.