Home / 21,796,719.50-30,080,406.04-12,138,927.50

Finding the Fourth Proportional to 21,796,719.50, 30,080,406.04 and 12,138,927.50

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Solution

The fourth proportional to 21,796,719.50, 30,080,406.04 and 12,138,927.50 is: 16,752,239.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,796,719.50 : 30,080,406.04 = 12,138,927.50 : x
  2. Step 2: Convert to fraction form
    21,796,719.50/30,080,406.04 = 12,138,927.50/x
  3. Step 3: Cross multiply
    21,796,719.50x = 30,080,406.04 × 12,138,927.50
  4. Step 4: Simplify right side
    21,796,719.50x = 365,143,868,090,122.06
  5. Step 5: Solve for x
    x = 365,143,868,090,122.06/21,796,719.50
  6. Step 6: Final answer
    x = 16,752,239.62

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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.