Home / 142,086,581.37-196,077,412.58-79,363,571.85

Finding the Fourth Proportional to 142,086,581.37, 196,077,412.58 and 79,363,571.85

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Solution

The fourth proportional to 142,086,581.37, 196,077,412.58 and 79,363,571.85 is: 109,520,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,086,581.37 : 196,077,412.58 = 79,363,571.85 : x
  2. Step 2: Convert to fraction form
    142,086,581.37/196,077,412.58 = 79,363,571.85/x
  3. Step 3: Cross multiply
    142,086,581.37x = 196,077,412.58 × 79,363,571.85
  4. Step 4: Simplify right side
    142,086,581.37x = 15,561,403,821,058,104
  5. Step 5: Solve for x
    x = 15,561,403,821,058,104/142,086,581.37
  6. Step 6: Final answer
    x = 109,520,573.10

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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.