Home / 221,448,609.20-332,172,913.80-210,363,143.60

Finding the Fourth Proportional to 221,448,609.20, 332,172,913.80 and 210,363,143.60

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Solution

The fourth proportional to 221,448,609.20, 332,172,913.80 and 210,363,143.60 is: 315,544,715.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,448,609.20 : 332,172,913.80 = 210,363,143.60 : x
  2. Step 2: Convert to fraction form
    221,448,609.20/332,172,913.80 = 210,363,143.60/x
  3. Step 3: Cross multiply
    221,448,609.20x = 332,172,913.80 × 210,363,143.60
  4. Step 4: Simplify right side
    221,448,609.20x = 69,876,938,365,739,824
  5. Step 5: Solve for x
    x = 69,876,938,365,739,824/221,448,609.20
  6. Step 6: Final answer
    x = 315,544,715.40

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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.