Home / 20,736,139.40-31,104,209.10-5,591,601.80

Finding the Fourth Proportional to 20,736,139.40, 31,104,209.10 and 5,591,601.80

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Solution

The fourth proportional to 20,736,139.40, 31,104,209.10 and 5,591,601.80 is: 8,387,402.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,139.40 : 31,104,209.10 = 5,591,601.80 : x
  2. Step 2: Convert to fraction form
    20,736,139.40/31,104,209.10 = 5,591,601.80/x
  3. Step 3: Cross multiply
    20,736,139.40x = 31,104,209.10 × 5,591,601.80
  4. Step 4: Simplify right side
    20,736,139.40x = 173,922,351,591,136.38
  5. Step 5: Solve for x
    x = 173,922,351,591,136.38/20,736,139.40
  6. Step 6: Final answer
    x = 8,387,402.70

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1.5x scale

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.