Home / 20,927,667.78-31,392,092.14-5,781,599.28

Finding the Fourth Proportional to 20,927,667.78, 31,392,092.14 and 5,781,599.28

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Solution

The fourth proportional to 20,927,667.78, 31,392,092.14 and 5,781,599.28 is: 8,672,562.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927,667.78 : 31,392,092.14 = 5,781,599.28 : x
  2. Step 2: Convert to fraction form
    20,927,667.78/31,392,092.14 = 5,781,599.28/x
  3. Step 3: Cross multiply
    20,927,667.78x = 31,392,092.14 × 5,781,599.28
  4. Step 4: Simplify right side
    20,927,667.78x = 181,496,497,314,317.66
  5. Step 5: Solve for x
    x = 181,496,497,314,317.66/20,927,667.78
  6. Step 6: Final answer
    x = 8,672,562.05

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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.