Home / 12,296,427.30-18,444,640.95-12,128,465.70

Finding the Fourth Proportional to 12,296,427.30, 18,444,640.95 and 12,128,465.70

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Solution

The fourth proportional to 12,296,427.30, 18,444,640.95 and 12,128,465.70 is: 18,192,698.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,296,427.30 : 18,444,640.95 = 12,128,465.70 : x
  2. Step 2: Convert to fraction form
    12,296,427.30/18,444,640.95 = 12,128,465.70/x
  3. Step 3: Cross multiply
    12,296,427.30x = 18,444,640.95 × 12,128,465.70
  4. Step 4: Simplify right side
    12,296,427.30x = 223,705,195,110,890.41
  5. Step 5: Solve for x
    x = 223,705,195,110,890.41/12,296,427.30
  6. Step 6: Final answer
    x = 18,192,698.55

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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.