Home / 339,989,791.10-509,984,686.65-266,013,203.90

Finding the Fourth Proportional to 339,989,791.10, 509,984,686.65 and 266,013,203.90

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Solution

The fourth proportional to 339,989,791.10, 509,984,686.65 and 266,013,203.90 is: 399,019,805.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,989,791.10 : 509,984,686.65 = 266,013,203.90 : x
  2. Step 2: Convert to fraction form
    339,989,791.10/509,984,686.65 = 266,013,203.90/x
  3. Step 3: Cross multiply
    339,989,791.10x = 509,984,686.65 × 266,013,203.90
  4. Step 4: Simplify right side
    339,989,791.10x = 135,662,660,435,704,048
  5. Step 5: Solve for x
    x = 135,662,660,435,704,048/339,989,791.10
  6. Step 6: Final answer
    x = 399,019,805.85

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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.