Home / 261,468,743.20-391,352,809.20-203,647,962.40

Finding the Fourth Proportional to 261,468,743.20, 391,352,809.20 and 203,647,962.40

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Solution

The fourth proportional to 261,468,743.20, 391,352,809.20 and 203,647,962.40 is: 304,809,673.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,468,743.20 : 391,352,809.20 = 203,647,962.40 : x
  2. Step 2: Convert to fraction form
    261,468,743.20/391,352,809.20 = 203,647,962.40/x
  3. Step 3: Cross multiply
    261,468,743.20x = 391,352,809.20 × 203,647,962.40
  4. Step 4: Simplify right side
    261,468,743.20x = 79,698,202,173,095,968
  5. Step 5: Solve for x
    x = 79,698,202,173,095,968/261,468,743.20
  6. Step 6: Final answer
    x = 304,809,673.22

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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.