Home / 28,776,421.80-43,127,891.10-11,717,821.80

Finding the Fourth Proportional to 28,776,421.80, 43,127,891.10 and 11,717,821.80

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Solution

The fourth proportional to 28,776,421.80, 43,127,891.10 and 11,717,821.80 is: 17,561,771.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,776,421.80 : 43,127,891.10 = 11,717,821.80 : x
  2. Step 2: Convert to fraction form
    28,776,421.80/43,127,891.10 = 11,717,821.80/x
  3. Step 3: Cross multiply
    28,776,421.80x = 43,127,891.10 × 11,717,821.80
  4. Step 4: Simplify right side
    28,776,421.80x = 505,364,942,519,606
  5. Step 5: Solve for x
    x = 505,364,942,519,606/28,776,421.80
  6. Step 6: Final answer
    x = 17,561,771.44

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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.