Home / 6,400,879.60-9,601,319.40-2,139,631.60

Finding the Fourth Proportional to 6,400,879.60, 9,601,319.40 and 2,139,631.60

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Solution

The fourth proportional to 6,400,879.60, 9,601,319.40 and 2,139,631.60 is: 3,209,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,400,879.60 : 9,601,319.40 = 2,139,631.60 : x
  2. Step 2: Convert to fraction form
    6,400,879.60/9,601,319.40 = 2,139,631.60/x
  3. Step 3: Cross multiply
    6,400,879.60x = 9,601,319.40 × 2,139,631.60
  4. Step 4: Simplify right side
    6,400,879.60x = 20,543,286,389,933.04
  5. Step 5: Solve for x
    x = 20,543,286,389,933.04/6,400,879.60
  6. Step 6: Final answer
    x = 3,209,447.40

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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.