Home / 18,900,845.40-28,372,263.30-10,397,789.40

Finding the Fourth Proportional to 18,900,845.40, 28,372,263.30 and 10,397,789.40

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Solution

The fourth proportional to 18,900,845.40, 28,372,263.30 and 10,397,789.40 is: 15,608,234.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,900,845.40 : 28,372,263.30 = 10,397,789.40 : x
  2. Step 2: Convert to fraction form
    18,900,845.40/28,372,263.30 = 10,397,789.40/x
  3. Step 3: Cross multiply
    18,900,845.40x = 28,372,263.30 × 10,397,789.40
  4. Step 4: Simplify right side
    18,900,845.40x = 295,008,818,594,749.06
  5. Step 5: Solve for x
    x = 295,008,818,594,749.06/18,900,845.40
  6. Step 6: Final answer
    x = 15,608,234.04

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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.