Home / 11,211,628.80-16,806,945.60-8,781,434.40

Finding the Fourth Proportional to 11,211,628.80, 16,806,945.60 and 8,781,434.40

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Solution

The fourth proportional to 11,211,628.80, 16,806,945.60 and 8,781,434.40 is: 13,163,929.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,211,628.80 : 16,806,945.60 = 8,781,434.40 : x
  2. Step 2: Convert to fraction form
    11,211,628.80/16,806,945.60 = 8,781,434.40/x
  3. Step 3: Cross multiply
    11,211,628.80x = 16,806,945.60 × 8,781,434.40
  4. Step 4: Simplify right side
    11,211,628.80x = 147,589,090,250,768.66
  5. Step 5: Solve for x
    x = 147,589,090,250,768.66/11,211,628.80
  6. Step 6: Final answer
    x = 13,163,929.42

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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.