Home / 21,427,626.51-29,566,669.55-13,165,031.43

Finding the Fourth Proportional to 21,427,626.51, 29,566,669.55 and 13,165,031.43

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Solution

The fourth proportional to 21,427,626.51, 29,566,669.55 and 13,165,031.43 is: 18,165,620.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,427,626.51 : 29,566,669.55 = 13,165,031.43 : x
  2. Step 2: Convert to fraction form
    21,427,626.51/29,566,669.55 = 13,165,031.43/x
  3. Step 3: Cross multiply
    21,427,626.51x = 29,566,669.55 × 13,165,031.43
  4. Step 4: Simplify right side
    21,427,626.51x = 389,246,133,840,348.81
  5. Step 5: Solve for x
    x = 389,246,133,840,348.81/21,427,626.51
  6. Step 6: Final answer
    x = 18,165,620.61

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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.