Home / 21,312,771.84-31,961,221.38-7,662,193.38

Finding the Fourth Proportional to 21,312,771.84, 31,961,221.38 and 7,662,193.38

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Solution

The fourth proportional to 21,312,771.84, 31,961,221.38 and 7,662,193.38 is: 11,490,436.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,312,771.84 : 31,961,221.38 = 7,662,193.38 : x
  2. Step 2: Convert to fraction form
    21,312,771.84/31,961,221.38 = 7,662,193.38/x
  3. Step 3: Cross multiply
    21,312,771.84x = 31,961,221.38 × 7,662,193.38
  4. Step 4: Simplify right side
    21,312,771.84x = 244,893,058,874,550.44
  5. Step 5: Solve for x
    x = 244,893,058,874,550.44/21,312,771.84
  6. Step 6: Final answer
    x = 11,490,436.85

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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.