Home / 451,972,692.20-678,167,543.24-206,404,607.46

Finding the Fourth Proportional to 451,972,692.20, 678,167,543.24 and 206,404,607.46

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Solution

The fourth proportional to 451,972,692.20, 678,167,543.24 and 206,404,607.46 is: 309,702,130.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,972,692.20 : 678,167,543.24 = 206,404,607.46 : x
  2. Step 2: Convert to fraction form
    451,972,692.20/678,167,543.24 = 206,404,607.46/x
  3. Step 3: Cross multiply
    451,972,692.20x = 678,167,543.24 × 206,404,607.46
  4. Step 4: Simplify right side
    451,972,692.20x = 139,976,905,554,564,784
  5. Step 5: Solve for x
    x = 139,976,905,554,564,784/451,972,692.20
  6. Step 6: Final answer
    x = 309,702,130.17

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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.