Home / 5,638,872.72-7,781,560.47-3,191,947.77

Finding the Fourth Proportional to 5,638,872.72, 7,781,560.47 and 3,191,947.77

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Solution

The fourth proportional to 5,638,872.72, 7,781,560.47 and 3,191,947.77 is: 4,404,840.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638,872.72 : 7,781,560.47 = 3,191,947.77 : x
  2. Step 2: Convert to fraction form
    5,638,872.72/7,781,560.47 = 3,191,947.77/x
  3. Step 3: Cross multiply
    5,638,872.72x = 7,781,560.47 × 3,191,947.77
  4. Step 4: Simplify right side
    5,638,872.72x = 24,838,334,589,336.65
  5. Step 5: Solve for x
    x = 24,838,334,589,336.65/5,638,872.72
  6. Step 6: Final answer
    x = 4,404,840.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.