Home / 12,221,429.20-18,332,143.80-5,502,965.20

Finding the Fourth Proportional to 12,221,429.20, 18,332,143.80 and 5,502,965.20

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Solution

The fourth proportional to 12,221,429.20, 18,332,143.80 and 5,502,965.20 is: 8,254,447.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,221,429.20 : 18,332,143.80 = 5,502,965.20 : x
  2. Step 2: Convert to fraction form
    12,221,429.20/18,332,143.80 = 5,502,965.20/x
  3. Step 3: Cross multiply
    12,221,429.20x = 18,332,143.80 × 5,502,965.20
  4. Step 4: Simplify right side
    12,221,429.20x = 100,881,149,372,795.77
  5. Step 5: Solve for x
    x = 100,881,149,372,795.77/12,221,429.20
  6. Step 6: Final answer
    x = 8,254,447.80

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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.