Home / 20,806,155.40-31,208,649.90-9,446,585.80

Finding the Fourth Proportional to 20,806,155.40, 31,208,649.90 and 9,446,585.80

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Solution

The fourth proportional to 20,806,155.40, 31,208,649.90 and 9,446,585.80 is: 14,169,613.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,806,155.40 : 31,208,649.90 = 9,446,585.80 : x
  2. Step 2: Convert to fraction form
    20,806,155.40/31,208,649.90 = 9,446,585.80/x
  3. Step 3: Cross multiply
    20,806,155.40x = 31,208,649.90 × 9,446,585.80
  4. Step 4: Simplify right side
    20,806,155.40x = 294,815,188,982,511.44
  5. Step 5: Solve for x
    x = 294,815,188,982,511.44/20,806,155.40
  6. Step 6: Final answer
    x = 14,169,613.91

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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.