Home / 30,221,105.40-45,342,155.70-13,193,998.20

Finding the Fourth Proportional to 30,221,105.40, 45,342,155.70 and 13,193,998.20

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Solution

The fourth proportional to 30,221,105.40, 45,342,155.70 and 13,193,998.20 is: 19,795,580.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,221,105.40 : 45,342,155.70 = 13,193,998.20 : x
  2. Step 2: Convert to fraction form
    30,221,105.40/45,342,155.70 = 13,193,998.20/x
  3. Step 3: Cross multiply
    30,221,105.40x = 45,342,155.70 × 13,193,998.20
  4. Step 4: Simplify right side
    30,221,105.40x = 598,244,320,689,919.75
  5. Step 5: Solve for x
    x = 598,244,320,689,919.75/30,221,105.40
  6. Step 6: Final answer
    x = 19,795,580.37

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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.