Home / 20,736,137.40-31,104,206.10-6,361,423.80

Finding the Fourth Proportional to 20,736,137.40, 31,104,206.10 and 6,361,423.80

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Solution

The fourth proportional to 20,736,137.40, 31,104,206.10 and 6,361,423.80 is: 9,542,135.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,137.40 : 31,104,206.10 = 6,361,423.80 : x
  2. Step 2: Convert to fraction form
    20,736,137.40/31,104,206.10 = 6,361,423.80/x
  3. Step 3: Cross multiply
    20,736,137.40x = 31,104,206.10 × 6,361,423.80
  4. Step 4: Simplify right side
    20,736,137.40x = 197,867,036,964,645.19
  5. Step 5: Solve for x
    x = 197,867,036,964,645.19/20,736,137.40
  6. Step 6: Final answer
    x = 9,542,135.70

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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.