Home / 21,090,756.04-29,104,072.64-11,796,530.78

Finding the Fourth Proportional to 21,090,756.04, 29,104,072.64 and 11,796,530.78

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Solution

The fourth proportional to 21,090,756.04, 29,104,072.64 and 11,796,530.78 is: 16,278,557.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,090,756.04 : 29,104,072.64 = 11,796,530.78 : x
  2. Step 2: Convert to fraction form
    21,090,756.04/29,104,072.64 = 11,796,530.78/x
  3. Step 3: Cross multiply
    21,090,756.04x = 29,104,072.64 × 11,796,530.78
  4. Step 4: Simplify right side
    21,090,756.04x = 343,327,088,721,115.88
  5. Step 5: Solve for x
    x = 343,327,088,721,115.88/21,090,756.04
  6. Step 6: Final answer
    x = 16,278,557.68

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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.