Home / 5,071,809.78-6,999,815.16-3,138,692.94

Finding the Fourth Proportional to 5,071,809.78, 6,999,815.16 and 3,138,692.94

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Solution

The fourth proportional to 5,071,809.78, 6,999,815.16 and 3,138,692.94 is: 4,331,840.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,071,809.78 : 6,999,815.16 = 3,138,692.94 : x
  2. Step 2: Convert to fraction form
    5,071,809.78/6,999,815.16 = 3,138,692.94/x
  3. Step 3: Cross multiply
    5,071,809.78x = 6,999,815.16 × 3,138,692.94
  4. Step 4: Simplify right side
    5,071,809.78x = 21,970,270,423,996.97
  5. Step 5: Solve for x
    x = 21,970,270,423,996.97/5,071,809.78
  6. Step 6: Final answer
    x = 4,331,840.38

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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.