Home / 10,921,093.60-16,381,640.40-7,897,784.80

Finding the Fourth Proportional to 10,921,093.60, 16,381,640.40 and 7,897,784.80

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Solution

The fourth proportional to 10,921,093.60, 16,381,640.40 and 7,897,784.80 is: 11,846,677.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921,093.60 : 16,381,640.40 = 7,897,784.80 : x
  2. Step 2: Convert to fraction form
    10,921,093.60/16,381,640.40 = 7,897,784.80/x
  3. Step 3: Cross multiply
    10,921,093.60x = 16,381,640.40 × 7,897,784.80
  4. Step 4: Simplify right side
    10,921,093.60x = 129,378,670,550,185.92
  5. Step 5: Solve for x
    x = 129,378,670,550,185.92/10,921,093.60
  6. Step 6: Final answer
    x = 11,846,677.20

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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.