Home / 31,410,921.72-43,332,522.30-18,358,730.76

Finding the Fourth Proportional to 31,410,921.72, 43,332,522.30 and 18,358,730.76

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Solution

The fourth proportional to 31,410,921.72, 43,332,522.30 and 18,358,730.76 is: 25,326,544.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,410,921.72 : 43,332,522.30 = 18,358,730.76 : x
  2. Step 2: Convert to fraction form
    31,410,921.72/43,332,522.30 = 18,358,730.76/x
  3. Step 3: Cross multiply
    31,410,921.72x = 43,332,522.30 × 18,358,730.76
  4. Step 4: Simplify right side
    31,410,921.72x = 795,530,110,057,396
  5. Step 5: Solve for x
    x = 795,530,110,057,396/31,410,921.72
  6. Step 6: Final answer
    x = 25,326,544.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.