Home / 19,944,057.20-29,916,085.80-12,379,564.40

Finding the Fourth Proportional to 19,944,057.20, 29,916,085.80 and 12,379,564.40

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Solution

The fourth proportional to 19,944,057.20, 29,916,085.80 and 12,379,564.40 is: 18,569,346.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,944,057.20 : 29,916,085.80 = 12,379,564.40 : x
  2. Step 2: Convert to fraction form
    19,944,057.20/29,916,085.80 = 12,379,564.40/x
  3. Step 3: Cross multiply
    19,944,057.20x = 29,916,085.80 × 12,379,564.40
  4. Step 4: Simplify right side
    19,944,057.20x = 370,348,110,757,025.56
  5. Step 5: Solve for x
    x = 370,348,110,757,025.56/19,944,057.20
  6. Step 6: Final answer
    x = 18,569,346.60

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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.