Home / 671,434,731.20-1,007,152,096.80-398,665,092.80

Finding the Fourth Proportional to 671,434,731.20, 1,007,152,096.80 and 398,665,092.80

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Solution

The fourth proportional to 671,434,731.20, 1,007,152,096.80 and 398,665,092.80 is: 597,997,639.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,434,731.20 : 1,007,152,096.80 = 398,665,092.80 : x
  2. Step 2: Convert to fraction form
    671,434,731.20/1,007,152,096.80 = 398,665,092.80/x
  3. Step 3: Cross multiply
    671,434,731.20x = 1,007,152,096.80 × 398,665,092.80
  4. Step 4: Simplify right side
    671,434,731.20x = 401,516,384,134,486,592
  5. Step 5: Solve for x
    x = 401,516,384,134,486,592/671,434,731.20
  6. Step 6: Final answer
    x = 597,997,639.20

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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.