Home / 12,221,403.70-18,332,105.55-6,153,790.90

Finding the Fourth Proportional to 12,221,403.70, 18,332,105.55 and 6,153,790.90

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Solution

The fourth proportional to 12,221,403.70, 18,332,105.55 and 6,153,790.90 is: 9,230,686.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,221,403.70 : 18,332,105.55 = 6,153,790.90 : x
  2. Step 2: Convert to fraction form
    12,221,403.70/18,332,105.55 = 6,153,790.90/x
  3. Step 3: Cross multiply
    12,221,403.70x = 18,332,105.55 × 6,153,790.90
  4. Step 4: Simplify right side
    12,221,403.70x = 112,811,944,311,429.50
  5. Step 5: Solve for x
    x = 112,811,944,311,429.50/12,221,403.70
  6. Step 6: Final answer
    x = 9,230,686.35

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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.