Home / 14,200,439.23-21,278,981.89-8,431,812.82

Finding the Fourth Proportional to 14,200,439.23, 21,278,981.89 and 8,431,812.82

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Solution

The fourth proportional to 14,200,439.23, 21,278,981.89 and 8,431,812.82 is: 12,634,848.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,200,439.23 : 21,278,981.89 = 8,431,812.82 : x
  2. Step 2: Convert to fraction form
    14,200,439.23/21,278,981.89 = 8,431,812.82/x
  3. Step 3: Cross multiply
    14,200,439.23x = 21,278,981.89 × 8,431,812.82
  4. Step 4: Simplify right side
    14,200,439.23x = 179,420,392,169,175.38
  5. Step 5: Solve for x
    x = 179,420,392,169,175.38/14,200,439.23
  6. Step 6: Final answer
    x = 12,634,848.07

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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.