Home / 21,066,412.27-31,571,873.39-8,920,847.17

Finding the Fourth Proportional to 21,066,412.27, 31,571,873.39 and 8,920,847.17

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Solution

The fourth proportional to 21,066,412.27, 31,571,873.39 and 8,920,847.17 is: 13,369,521.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,066,412.27 : 31,571,873.39 = 8,920,847.17 : x
  2. Step 2: Convert to fraction form
    21,066,412.27/31,571,873.39 = 8,920,847.17/x
  3. Step 3: Cross multiply
    21,066,412.27x = 31,571,873.39 × 8,920,847.17
  4. Step 4: Simplify right side
    21,066,412.27x = 281,647,857,382,779.81
  5. Step 5: Solve for x
    x = 281,647,857,382,779.81/21,066,412.27
  6. Step 6: Final answer
    x = 13,369,521.77

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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.