Home / 20,528,747.51-28,283,212.20-16,851,842.82

Finding the Fourth Proportional to 20,528,747.51, 28,283,212.20 and 16,851,842.82

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Solution

The fourth proportional to 20,528,747.51, 28,283,212.20 and 16,851,842.82 is: 23,217,405.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528,747.51 : 28,283,212.20 = 16,851,842.82 : x
  2. Step 2: Convert to fraction form
    20,528,747.51/28,283,212.20 = 16,851,842.82/x
  3. Step 3: Cross multiply
    20,528,747.51x = 28,283,212.20 × 16,851,842.82
  4. Step 4: Simplify right side
    20,528,747.51x = 476,624,246,439,106.38
  5. Step 5: Solve for x
    x = 476,624,246,439,106.38/20,528,747.51
  6. Step 6: Final answer
    x = 23,217,405.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.