Home / 355,051,815.20-532,241,799.60-209,597,069.60

Finding the Fourth Proportional to 355,051,815.20, 532,241,799.60 and 209,597,069.60

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Solution

The fourth proportional to 355,051,815.20, 532,241,799.60 and 209,597,069.60 is: 314,197,299.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,051,815.20 : 532,241,799.60 = 209,597,069.60 : x
  2. Step 2: Convert to fraction form
    355,051,815.20/532,241,799.60 = 209,597,069.60/x
  3. Step 3: Cross multiply
    355,051,815.20x = 532,241,799.60 × 209,597,069.60
  4. Step 4: Simplify right side
    355,051,815.20x = 111,556,321,514,790,448
  5. Step 5: Solve for x
    x = 111,556,321,514,790,448/355,051,815.20
  6. Step 6: Final answer
    x = 314,197,299.49

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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.