Home / 12,921,111.60-19,359,894.60-10,215,063.60

Finding the Fourth Proportional to 12,921,111.60, 19,359,894.60 and 10,215,063.60

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Solution

The fourth proportional to 12,921,111.60, 19,359,894.60 and 10,215,063.60 is: 15,305,382.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921,111.60 : 19,359,894.60 = 10,215,063.60 : x
  2. Step 2: Convert to fraction form
    12,921,111.60/19,359,894.60 = 10,215,063.60/x
  3. Step 3: Cross multiply
    12,921,111.60x = 19,359,894.60 × 10,215,063.60
  4. Step 4: Simplify right side
    12,921,111.60x = 197,762,554,628,296.56
  5. Step 5: Solve for x
    x = 197,762,554,628,296.56/12,921,111.60
  6. Step 6: Final answer
    x = 15,305,382.44

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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.