Home / 43,119,903.60-64,679,855.40-20,445,087.60

Finding the Fourth Proportional to 43,119,903.60, 64,679,855.40 and 20,445,087.60

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Solution

The fourth proportional to 43,119,903.60, 64,679,855.40 and 20,445,087.60 is: 30,667,631.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,119,903.60 : 64,679,855.40 = 20,445,087.60 : x
  2. Step 2: Convert to fraction form
    43,119,903.60/64,679,855.40 = 20,445,087.60/x
  3. Step 3: Cross multiply
    43,119,903.60x = 64,679,855.40 × 20,445,087.60
  4. Step 4: Simplify right side
    43,119,903.60x = 1,322,385,309,608,333
  5. Step 5: Solve for x
    x = 1,322,385,309,608,333/43,119,903.60
  6. Step 6: Final answer
    x = 30,667,631.40

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Double scale
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Similar ratio
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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.