Home / 387,096,990.40-580,645,485.60-347,682,001.60

Finding the Fourth Proportional to 387,096,990.40, 580,645,485.60 and 347,682,001.60

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Solution

The fourth proportional to 387,096,990.40, 580,645,485.60 and 347,682,001.60 is: 521,523,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,096,990.40 : 580,645,485.60 = 347,682,001.60 : x
  2. Step 2: Convert to fraction form
    387,096,990.40/580,645,485.60 = 347,682,001.60/x
  3. Step 3: Cross multiply
    387,096,990.40x = 580,645,485.60 × 347,682,001.60
  4. Step 4: Simplify right side
    387,096,990.40x = 201,879,984,653,412,000
  5. Step 5: Solve for x
    x = 201,879,984,653,412,000/387,096,990.40
  6. Step 6: Final answer
    x = 521,523,002.40

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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.