Home / 21,250,836.40-31,947,113.40-18,133,049.20

Finding the Fourth Proportional to 21,250,836.40, 31,947,113.40 and 18,133,049.20

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Solution

The fourth proportional to 21,250,836.40, 31,947,113.40 and 18,133,049.20 is: 27,260,036.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250,836.40 : 31,947,113.40 = 18,133,049.20 : x
  2. Step 2: Convert to fraction form
    21,250,836.40/31,947,113.40 = 18,133,049.20/x
  3. Step 3: Cross multiply
    21,250,836.40x = 31,947,113.40 × 18,133,049.20
  4. Step 4: Simplify right side
    21,250,836.40x = 579,298,579,080,179.25
  5. Step 5: Solve for x
    x = 579,298,579,080,179.25/21,250,836.40
  6. Step 6: Final answer
    x = 27,260,036.65

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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.