Home / 387,086,811.40-580,630,217.10-347,671,822.60

Finding the Fourth Proportional to 387,086,811.40, 580,630,217.10 and 347,671,822.60

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Solution

The fourth proportional to 387,086,811.40, 580,630,217.10 and 347,671,822.60 is: 521,507,733.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,086,811.40 : 580,630,217.10 = 347,671,822.60 : x
  2. Step 2: Convert to fraction form
    387,086,811.40/580,630,217.10 = 347,671,822.60/x
  3. Step 3: Cross multiply
    387,086,811.40x = 580,630,217.10 × 347,671,822.60
  4. Step 4: Simplify right side
    387,086,811.40x = 201,868,765,835,790,720
  5. Step 5: Solve for x
    x = 201,868,765,835,790,720/387,086,811.40
  6. Step 6: Final answer
    x = 521,507,733.90

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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.