Home / 12,915,503.84-19,373,282.42-12,126,313.96

Finding the Fourth Proportional to 12,915,503.84, 19,373,282.42 and 12,126,313.96

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Solution

The fourth proportional to 12,915,503.84, 19,373,282.42 and 12,126,313.96 is: 18,189,495.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,915,503.84 : 19,373,282.42 = 12,126,313.96 : x
  2. Step 2: Convert to fraction form
    12,915,503.84/19,373,282.42 = 12,126,313.96/x
  3. Step 3: Cross multiply
    12,915,503.84x = 19,373,282.42 × 12,126,313.96
  4. Step 4: Simplify right side
    12,915,503.84x = 234,926,505,060,668.62
  5. Step 5: Solve for x
    x = 234,926,505,060,668.62/12,915,503.84
  6. Step 6: Final answer
    x = 18,189,495.97

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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.