Home / 422,784,064.20-634,176,096.30-392,173,062.60

Finding the Fourth Proportional to 422,784,064.20, 634,176,096.30 and 392,173,062.60

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Solution

The fourth proportional to 422,784,064.20, 634,176,096.30 and 392,173,062.60 is: 588,259,593.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,784,064.20 : 634,176,096.30 = 392,173,062.60 : x
  2. Step 2: Convert to fraction form
    422,784,064.20/634,176,096.30 = 392,173,062.60/x
  3. Step 3: Cross multiply
    422,784,064.20x = 634,176,096.30 × 392,173,062.60
  4. Step 4: Simplify right side
    422,784,064.20x = 248,706,781,913,683,520
  5. Step 5: Solve for x
    x = 248,706,781,913,683,520/422,784,064.20
  6. Step 6: Final answer
    x = 588,259,593.90

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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.