Home / 21,054,145.28-29,042,592.96-12,675,682.24

Finding the Fourth Proportional to 21,054,145.28, 29,042,592.96 and 12,675,682.24

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Solution

The fourth proportional to 21,054,145.28, 29,042,592.96 and 12,675,682.24 is: 17,485,140.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054,145.28 : 29,042,592.96 = 12,675,682.24 : x
  2. Step 2: Convert to fraction form
    21,054,145.28/29,042,592.96 = 12,675,682.24/x
  3. Step 3: Cross multiply
    21,054,145.28x = 29,042,592.96 × 12,675,682.24
  4. Step 4: Simplify right side
    21,054,145.28x = 368,134,679,786,621.06
  5. Step 5: Solve for x
    x = 368,134,679,786,621.06/21,054,145.28
  6. Step 6: Final answer
    x = 17,485,140.09

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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.