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Finding the Fourth Proportional to 217,667,999.60, 326,501,999.40 and 217,667,999.60

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Solution

The fourth proportional to 217,667,999.60, 326,501,999.40 and 217,667,999.60 is: 326,501,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,667,999.60 : 326,501,999.40 = 217,667,999.60 : x
  2. Step 2: Convert to fraction form
    217,667,999.60/326,501,999.40 = 217,667,999.60/x
  3. Step 3: Cross multiply
    217,667,999.60x = 326,501,999.40 × 217,667,999.60
  4. Step 4: Simplify right side
    217,667,999.60x = 71,069,037,074,798,392
  5. Step 5: Solve for x
    x = 71,069,037,074,798,392/217,667,999.60
  6. Step 6: Final answer
    x = 326,501,999.40

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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.