Home / 419,904,887.40-629,857,331.10-288,390,954.60

Finding the Fourth Proportional to 419,904,887.40, 629,857,331.10 and 288,390,954.60

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Solution

The fourth proportional to 419,904,887.40, 629,857,331.10 and 288,390,954.60 is: 432,586,431.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,887.40 : 629,857,331.10 = 288,390,954.60 : x
  2. Step 2: Convert to fraction form
    419,904,887.40/629,857,331.10 = 288,390,954.60/x
  3. Step 3: Cross multiply
    419,904,887.40x = 629,857,331.10 × 288,390,954.60
  4. Step 4: Simplify right side
    419,904,887.40x = 181,645,156,977,737,280
  5. Step 5: Solve for x
    x = 181,645,156,977,737,280/419,904,887.40
  6. Step 6: Final answer
    x = 432,586,431.90

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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.