Home / 387,086,800.40-580,630,200.60-347,671,811.60

Finding the Fourth Proportional to 387,086,800.40, 580,630,200.60 and 347,671,811.60

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Solution

The fourth proportional to 387,086,800.40, 580,630,200.60 and 347,671,811.60 is: 521,507,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,086,800.40 : 580,630,200.60 = 347,671,811.60 : x
  2. Step 2: Convert to fraction form
    387,086,800.40/580,630,200.60 = 347,671,811.60/x
  3. Step 3: Cross multiply
    387,086,800.40x = 580,630,200.60 × 347,671,811.60
  4. Step 4: Simplify right side
    387,086,800.40x = 201,868,753,712,273,440
  5. Step 5: Solve for x
    x = 201,868,753,712,273,440/387,086,800.40
  6. Step 6: Final answer
    x = 521,507,717.40

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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.