Home / 12,126,768.30-18,190,152.45-11,249,890.65

Finding the Fourth Proportional to 12,126,768.30, 18,190,152.45 and 11,249,890.65

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Solution

The fourth proportional to 12,126,768.30, 18,190,152.45 and 11,249,890.65 is: 16,874,835.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126,768.30 : 18,190,152.45 = 11,249,890.65 : x
  2. Step 2: Convert to fraction form
    12,126,768.30/18,190,152.45 = 11,249,890.65/x
  3. Step 3: Cross multiply
    12,126,768.30x = 18,190,152.45 × 11,249,890.65
  4. Step 4: Simplify right side
    12,126,768.30x = 204,637,225,969,329.59
  5. Step 5: Solve for x
    x = 204,637,225,969,329.59/12,126,768.30
  6. Step 6: Final answer
    x = 16,874,835.98

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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.