Home / 189,839,828.10-261,989,134.62-106,202,969.30

Finding the Fourth Proportional to 189,839,828.10, 261,989,134.62 and 106,202,969.30

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Solution

The fourth proportional to 189,839,828.10, 261,989,134.62 and 106,202,969.30 is: 146,565,788.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,839,828.10 : 261,989,134.62 = 106,202,969.30 : x
  2. Step 2: Convert to fraction form
    189,839,828.10/261,989,134.62 = 106,202,969.30/x
  3. Step 3: Cross multiply
    189,839,828.10x = 261,989,134.62 × 106,202,969.30
  4. Step 4: Simplify right side
    189,839,828.10x = 27,824,024,020,981,428
  5. Step 5: Solve for x
    x = 27,824,024,020,981,428/189,839,828.10
  6. Step 6: Final answer
    x = 146,565,788.11

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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.