Home / 20,689,743.80-31,034,615.70-5,545,206.20

Finding the Fourth Proportional to 20,689,743.80, 31,034,615.70 and 5,545,206.20

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Solution

The fourth proportional to 20,689,743.80, 31,034,615.70 and 5,545,206.20 is: 8,317,809.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689,743.80 : 31,034,615.70 = 5,545,206.20 : x
  2. Step 2: Convert to fraction form
    20,689,743.80/31,034,615.70 = 5,545,206.20/x
  3. Step 3: Cross multiply
    20,689,743.80x = 31,034,615.70 × 5,545,206.20
  4. Step 4: Simplify right side
    20,689,743.80x = 172,093,343,394,257.34
  5. Step 5: Solve for x
    x = 172,093,343,394,257.34/20,689,743.80
  6. Step 6: Final answer
    x = 8,317,809.30

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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.