Home / 387,096,989.40-580,645,484.10-347,682,000.60

Finding the Fourth Proportional to 387,096,989.40, 580,645,484.10 and 347,682,000.60

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Solution

The fourth proportional to 387,096,989.40, 580,645,484.10 and 347,682,000.60 is: 521,523,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,096,989.40 : 580,645,484.10 = 347,682,000.60 : x
  2. Step 2: Convert to fraction form
    387,096,989.40/580,645,484.10 = 347,682,000.60/x
  3. Step 3: Cross multiply
    387,096,989.40x = 580,645,484.10 × 347,682,000.60
  4. Step 4: Simplify right side
    387,096,989.40x = 201,879,983,551,243,520
  5. Step 5: Solve for x
    x = 201,879,983,551,243,520/387,096,989.40
  6. Step 6: Final answer
    x = 521,523,000.90

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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.