Home / 387,073,205.40-580,609,808.10-347,658,216.60

Finding the Fourth Proportional to 387,073,205.40, 580,609,808.10 and 347,658,216.60

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Solution

The fourth proportional to 387,073,205.40, 580,609,808.10 and 347,658,216.60 is: 521,487,324.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,073,205.40 : 580,609,808.10 = 347,658,216.60 : x
  2. Step 2: Convert to fraction form
    387,073,205.40/580,609,808.10 = 347,658,216.60/x
  3. Step 3: Cross multiply
    387,073,205.40x = 580,609,808.10 × 347,658,216.60
  4. Step 4: Simplify right side
    387,073,205.40x = 201,853,770,424,514,272
  5. Step 5: Solve for x
    x = 201,853,770,424,514,272/387,073,205.40
  6. Step 6: Final answer
    x = 521,487,324.90

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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.