Home / 21,484,910.20-32,161,010.10-12,482,721.40

Finding the Fourth Proportional to 21,484,910.20, 32,161,010.10 and 12,482,721.40

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Solution

The fourth proportional to 21,484,910.20, 32,161,010.10 and 12,482,721.40 is: 18,685,529.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,484,910.20 : 32,161,010.10 = 12,482,721.40 : x
  2. Step 2: Convert to fraction form
    21,484,910.20/32,161,010.10 = 12,482,721.40/x
  3. Step 3: Cross multiply
    21,484,910.20x = 32,161,010.10 × 12,482,721.40
  4. Step 4: Simplify right side
    21,484,910.20x = 401,456,929,020,886.19
  5. Step 5: Solve for x
    x = 401,456,929,020,886.19/21,484,910.20
  6. Step 6: Final answer
    x = 18,685,529.76

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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.