Home / 20,713,828.77-31,079,703.03-11,117,997.22

Finding the Fourth Proportional to 20,713,828.77, 31,079,703.03 and 11,117,997.22

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Solution

The fourth proportional to 20,713,828.77, 31,079,703.03 and 11,117,997.22 is: 16,681,804.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713,828.77 : 31,079,703.03 = 11,117,997.22 : x
  2. Step 2: Convert to fraction form
    20,713,828.77/31,079,703.03 = 11,117,997.22/x
  3. Step 3: Cross multiply
    20,713,828.77x = 31,079,703.03 × 11,117,997.22
  4. Step 4: Simplify right side
    20,713,828.77x = 345,544,051,766,573.81
  5. Step 5: Solve for x
    x = 345,544,051,766,573.81/20,713,828.77
  6. Step 6: Final answer
    x = 16,681,804.97

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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.