Home / 12,439,358.70-18,667,332.45-7,047,998.70

Finding the Fourth Proportional to 12,439,358.70, 18,667,332.45 and 7,047,998.70

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Solution

The fourth proportional to 12,439,358.70, 18,667,332.45 and 7,047,998.70 is: 10,576,697.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439,358.70 : 18,667,332.45 = 7,047,998.70 : x
  2. Step 2: Convert to fraction form
    12,439,358.70/18,667,332.45 = 7,047,998.70/x
  3. Step 3: Cross multiply
    12,439,358.70x = 18,667,332.45 × 7,047,998.70
  4. Step 4: Simplify right side
    12,439,358.70x = 131,567,334,840,067.81
  5. Step 5: Solve for x
    x = 131,567,334,840,067.81/12,439,358.70
  6. Step 6: Final answer
    x = 10,576,697.56

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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.