Home / 21,250,832.40-31,947,107.40-18,133,045.20

Finding the Fourth Proportional to 21,250,832.40, 31,947,107.40 and 18,133,045.20

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Solution

The fourth proportional to 21,250,832.40, 31,947,107.40 and 18,133,045.20 is: 27,260,030.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250,832.40 : 31,947,107.40 = 18,133,045.20 : x
  2. Step 2: Convert to fraction form
    21,250,832.40/31,947,107.40 = 18,133,045.20/x
  3. Step 3: Cross multiply
    21,250,832.40x = 31,947,107.40 × 18,133,045.20
  4. Step 4: Simplify right side
    21,250,832.40x = 579,298,342,493,454.38
  5. Step 5: Solve for x
    x = 579,298,342,493,454.38/21,250,832.40
  6. Step 6: Final answer
    x = 27,260,030.65

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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.