Home / 142,725,082.23-196,944,817.64-79,143,822.81

Finding the Fourth Proportional to 142,725,082.23, 196,944,817.64 and 79,143,822.81

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Solution

The fourth proportional to 142,725,082.23, 196,944,817.64 and 79,143,822.81 is: 109,209,716.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,725,082.23 : 196,944,817.64 = 79,143,822.81 : x
  2. Step 2: Convert to fraction form
    142,725,082.23/196,944,817.64 = 79,143,822.81/x
  3. Step 3: Cross multiply
    142,725,082.23x = 196,944,817.64 × 79,143,822.81
  4. Step 4: Simplify right side
    142,725,082.23x = 15,586,965,750,252,202
  5. Step 5: Solve for x
    x = 15,586,965,750,252,202/142,725,082.23
  6. Step 6: Final answer
    x = 109,209,716.38

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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.