Home / 21,191,645.32-31,781,776.82-5,835,278.95

Finding the Fourth Proportional to 21,191,645.32, 31,781,776.82 and 5,835,278.95

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Solution

The fourth proportional to 21,191,645.32, 31,781,776.82 and 5,835,278.95 is: 8,751,351.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,191,645.32 : 31,781,776.82 = 5,835,278.95 : x
  2. Step 2: Convert to fraction form
    21,191,645.32/31,781,776.82 = 5,835,278.95/x
  3. Step 3: Cross multiply
    21,191,645.32x = 31,781,776.82 × 5,835,278.95
  4. Step 4: Simplify right side
    21,191,645.32x = 185,455,533,162,713.09
  5. Step 5: Solve for x
    x = 185,455,533,162,713.09/21,191,645.32
  6. Step 6: Final answer
    x = 8,751,351.32

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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.