Home / 20,806,154.40-31,208,648.40-9,446,584.80

Finding the Fourth Proportional to 20,806,154.40, 31,208,648.40 and 9,446,584.80

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Solution

The fourth proportional to 20,806,154.40, 31,208,648.40 and 9,446,584.80 is: 14,169,612.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,806,154.40 : 31,208,648.40 = 9,446,584.80 : x
  2. Step 2: Convert to fraction form
    20,806,154.40/31,208,648.40 = 9,446,584.80/x
  3. Step 3: Cross multiply
    20,806,154.40x = 31,208,648.40 × 9,446,584.80
  4. Step 4: Simplify right side
    20,806,154.40x = 294,815,143,603,984.31
  5. Step 5: Solve for x
    x = 294,815,143,603,984.31/20,806,154.40
  6. Step 6: Final answer
    x = 14,169,612.41

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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.