Home / 12,134,429.80-18,201,644.70-10,221,242.20

Finding the Fourth Proportional to 12,134,429.80, 18,201,644.70 and 10,221,242.20

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Solution

The fourth proportional to 12,134,429.80, 18,201,644.70 and 10,221,242.20 is: 15,331,863.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,134,429.80 : 18,201,644.70 = 10,221,242.20 : x
  2. Step 2: Convert to fraction form
    12,134,429.80/18,201,644.70 = 10,221,242.20/x
  3. Step 3: Cross multiply
    12,134,429.80x = 18,201,644.70 × 10,221,242.20
  4. Step 4: Simplify right side
    12,134,429.80x = 186,043,418,917,046.31
  5. Step 5: Solve for x
    x = 186,043,418,917,046.31/12,134,429.80
  6. Step 6: Final answer
    x = 15,331,863.30

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1.5x scale

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.