Home / 192,560,777.38-288,979,074.69-81,973,980.10

Finding the Fourth Proportional to 192,560,777.38, 288,979,074.69 and 81,973,980.10

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Solution

The fourth proportional to 192,560,777.38, 288,979,074.69 and 81,973,980.10 is: 123,019,678.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,560,777.38 : 288,979,074.69 = 81,973,980.10 : x
  2. Step 2: Convert to fraction form
    192,560,777.38/288,979,074.69 = 81,973,980.10/x
  3. Step 3: Cross multiply
    192,560,777.38x = 288,979,074.69 × 81,973,980.10
  4. Step 4: Simplify right side
    192,560,777.38x = 23,688,764,917,954,472
  5. Step 5: Solve for x
    x = 23,688,764,917,954,472/192,560,777.38
  6. Step 6: Final answer
    x = 123,019,678.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.