Home / 213,176,401.20-319,764,601.80-122,477,137.20

Finding the Fourth Proportional to 213,176,401.20, 319,764,601.80 and 122,477,137.20

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Solution

The fourth proportional to 213,176,401.20, 319,764,601.80 and 122,477,137.20 is: 183,715,705.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,176,401.20 : 319,764,601.80 = 122,477,137.20 : x
  2. Step 2: Convert to fraction form
    213,176,401.20/319,764,601.80 = 122,477,137.20/x
  3. Step 3: Cross multiply
    213,176,401.20x = 319,764,601.80 × 122,477,137.20
  4. Step 4: Simplify right side
    213,176,401.20x = 39,163,853,006,361,968
  5. Step 5: Solve for x
    x = 39,163,853,006,361,968/213,176,401.20
  6. Step 6: Final answer
    x = 183,715,705.80

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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.