Home / 18,219,344.69-25,142,697.52-9,959,440.61

Finding the Fourth Proportional to 18,219,344.69, 25,142,697.52 and 9,959,440.61

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Solution

The fourth proportional to 18,219,344.69, 25,142,697.52 and 9,959,440.61 is: 13,744,029.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219,344.69 : 25,142,697.52 = 9,959,440.61 : x
  2. Step 2: Convert to fraction form
    18,219,344.69/25,142,697.52 = 9,959,440.61/x
  3. Step 3: Cross multiply
    18,219,344.69x = 25,142,697.52 × 9,959,440.61
  4. Step 4: Simplify right side
    18,219,344.69x = 250,407,202,819,624.25
  5. Step 5: Solve for x
    x = 250,407,202,819,624.25/18,219,344.69
  6. Step 6: Final answer
    x = 13,744,029.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.