Home / 419,905,511.40-629,858,267.10-266,724,532.20

Finding the Fourth Proportional to 419,905,511.40, 629,858,267.10 and 266,724,532.20

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Solution

The fourth proportional to 419,905,511.40, 629,858,267.10 and 266,724,532.20 is: 400,086,798.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,511.40 : 629,858,267.10 = 266,724,532.20 : x
  2. Step 2: Convert to fraction form
    419,905,511.40/629,858,267.10 = 266,724,532.20/x
  3. Step 3: Cross multiply
    419,905,511.40x = 629,858,267.10 × 266,724,532.20
  4. Step 4: Simplify right side
    419,905,511.40x = 167,998,651,644,550,144
  5. Step 5: Solve for x
    x = 167,998,651,644,550,144/419,905,511.40
  6. Step 6: Final answer
    x = 400,086,798.30

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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.