Home / 12,217,888.65-18,326,849.99-5,205,196.60

Finding the Fourth Proportional to 12,217,888.65, 18,326,849.99 and 5,205,196.60

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Solution

The fourth proportional to 12,217,888.65, 18,326,849.99 and 5,205,196.60 is: 7,807,802.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217,888.65 : 18,326,849.99 = 5,205,196.60 : x
  2. Step 2: Convert to fraction form
    12,217,888.65/18,326,849.99 = 5,205,196.60/x
  3. Step 3: Cross multiply
    12,217,888.65x = 18,326,849.99 × 5,205,196.60
  4. Step 4: Simplify right side
    12,217,888.65x = 95,394,857,256,658.02
  5. Step 5: Solve for x
    x = 95,394,857,256,658.02/12,217,888.65
  6. Step 6: Final answer
    x = 7,807,802.15

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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.