Home / 21,191,653.32-31,781,788.80-5,835,286.96

Finding the Fourth Proportional to 21,191,653.32, 31,781,788.80 and 5,835,286.96

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Solution

The fourth proportional to 21,191,653.32, 31,781,788.80 and 5,835,286.96 is: 8,751,363.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,191,653.32 : 31,781,788.80 = 5,835,286.96 : x
  2. Step 2: Convert to fraction form
    21,191,653.32/31,781,788.80 = 5,835,286.96/x
  3. Step 3: Cross multiply
    21,191,653.32x = 31,781,788.80 × 5,835,286.96
  4. Step 4: Simplify right side
    21,191,653.32x = 185,455,857,750,114.06
  5. Step 5: Solve for x
    x = 185,455,857,750,114.06/21,191,653.32
  6. Step 6: Final answer
    x = 8,751,363.33

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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.