Home / 142,263,642.36-196,324,032.78-77,073,546.36

Finding the Fourth Proportional to 142,263,642.36, 196,324,032.78 and 77,073,546.36

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Solution

The fourth proportional to 142,263,642.36, 196,324,032.78 and 77,073,546.36 is: 106,361,605.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,263,642.36 : 196,324,032.78 = 77,073,546.36 : x
  2. Step 2: Convert to fraction form
    142,263,642.36/196,324,032.78 = 77,073,546.36/x
  3. Step 3: Cross multiply
    142,263,642.36x = 196,324,032.78 × 77,073,546.36
  4. Step 4: Simplify right side
    142,263,642.36x = 15,131,389,442,051,490
  5. Step 5: Solve for x
    x = 15,131,389,442,051,490/142,263,642.36
  6. Step 6: Final answer
    x = 106,361,605.76

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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.