Home / 12,979,755.30-19,460,664.88-5,689,713.38

Finding the Fourth Proportional to 12,979,755.30, 19,460,664.88 and 5,689,713.38

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Solution

The fourth proportional to 12,979,755.30, 19,460,664.88 and 5,689,713.38 is: 8,530,638.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,979,755.30 : 19,460,664.88 = 5,689,713.38 : x
  2. Step 2: Convert to fraction form
    12,979,755.30/19,460,664.88 = 5,689,713.38/x
  3. Step 3: Cross multiply
    12,979,755.30x = 19,460,664.88 × 5,689,713.38
  4. Step 4: Simplify right side
    12,979,755.30x = 110,725,605,385,859.48
  5. Step 5: Solve for x
    x = 110,725,605,385,859.48/12,979,755.30
  6. Step 6: Final answer
    x = 8,530,638.89

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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.