Home / 57,093,679-78,789,363.60-30,988,206.37

Finding the Fourth Proportional to 57,093,679, 78,789,363.60 and 30,988,206.37

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Solution

The fourth proportional to 57,093,679, 78,789,363.60 and 30,988,206.37 is: 42,763,771.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,093,679 : 78,789,363.60 = 30,988,206.37 : x
  2. Step 2: Convert to fraction form
    57,093,679/78,789,363.60 = 30,988,206.37/x
  3. Step 3: Cross multiply
    57,093,679x = 78,789,363.60 × 30,988,206.37
  4. Step 4: Simplify right side
    57,093,679x = 2,441,541,058,997,766
  5. Step 5: Solve for x
    x = 2,441,541,058,997,766/57,093,679
  6. Step 6: Final answer
    x = 42,763,771.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.