Home / 12,752,811.90-19,129,217.85-12,256,800.30

Finding the Fourth Proportional to 12,752,811.90, 19,129,217.85 and 12,256,800.30

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Solution

The fourth proportional to 12,752,811.90, 19,129,217.85 and 12,256,800.30 is: 18,385,200.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,752,811.90 : 19,129,217.85 = 12,256,800.30 : x
  2. Step 2: Convert to fraction form
    12,752,811.90/19,129,217.85 = 12,256,800.30/x
  3. Step 3: Cross multiply
    12,752,811.90x = 19,129,217.85 × 12,256,800.30
  4. Step 4: Simplify right side
    12,752,811.90x = 234,463,003,082,645.38
  5. Step 5: Solve for x
    x = 234,463,003,082,645.38/12,752,811.90
  6. Step 6: Final answer
    x = 18,385,200.45

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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.