Home / 142,263,999.36-196,324,647.84-79,542,332.64

Finding the Fourth Proportional to 142,263,999.36, 196,324,647.84 and 79,542,332.64

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Solution

The fourth proportional to 142,263,999.36, 196,324,647.84 and 79,542,332.64 is: 109,768,602.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,263,999.36 : 196,324,647.84 = 79,542,332.64 : x
  2. Step 2: Convert to fraction form
    142,263,999.36/196,324,647.84 = 79,542,332.64/x
  3. Step 3: Cross multiply
    142,263,999.36x = 196,324,647.84 × 79,542,332.64
  4. Step 4: Simplify right side
    142,263,999.36x = 15,616,120,443,920,138
  5. Step 5: Solve for x
    x = 15,616,120,443,920,138/142,263,999.36
  6. Step 6: Final answer
    x = 109,768,602.84

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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.