Home / 18,884,879.10-28,327,318.65-5,237,999.10

Finding the Fourth Proportional to 18,884,879.10, 28,327,318.65 and 5,237,999.10

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Solution

The fourth proportional to 18,884,879.10, 28,327,318.65 and 5,237,999.10 is: 7,856,998.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,884,879.10 : 28,327,318.65 = 5,237,999.10 : x
  2. Step 2: Convert to fraction form
    18,884,879.10/28,327,318.65 = 5,237,999.10/x
  3. Step 3: Cross multiply
    18,884,879.10x = 28,327,318.65 × 5,237,999.10
  4. Step 4: Simplify right side
    18,884,879.10x = 148,378,469,594,113.19
  5. Step 5: Solve for x
    x = 148,378,469,594,113.19/18,884,879.10
  6. Step 6: Final answer
    x = 7,856,998.65

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1.5x scale

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.