Home / 21,886,780.80-30,203,876.04-11,963,676.96

Finding the Fourth Proportional to 21,886,780.80, 30,203,876.04 and 11,963,676.96

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Solution

The fourth proportional to 21,886,780.80, 30,203,876.04 and 11,963,676.96 is: 16,509,939.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,886,780.80 : 30,203,876.04 = 11,963,676.96 : x
  2. Step 2: Convert to fraction form
    21,886,780.80/30,203,876.04 = 11,963,676.96/x
  3. Step 3: Cross multiply
    21,886,780.80x = 30,203,876.04 × 11,963,676.96
  4. Step 4: Simplify right side
    21,886,780.80x = 361,349,415,882,444.06
  5. Step 5: Solve for x
    x = 361,349,415,882,444.06/21,886,780.80
  6. Step 6: Final answer
    x = 16,509,939.00

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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.