Home / 106,392,429.12-159,588,643.84-82,166,691.36

Finding the Fourth Proportional to 106,392,429.12, 159,588,643.84 and 82,166,691.36

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Solution

The fourth proportional to 106,392,429.12, 159,588,643.84 and 82,166,691.36 is: 123,250,037.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,392,429.12 : 159,588,643.84 = 82,166,691.36 : x
  2. Step 2: Convert to fraction form
    106,392,429.12/159,588,643.84 = 82,166,691.36/x
  3. Step 3: Cross multiply
    106,392,429.12x = 159,588,643.84 × 82,166,691.36
  4. Step 4: Simplify right side
    106,392,429.12x = 13,112,870,842,962,246
  5. Step 5: Solve for x
    x = 13,112,870,842,962,246/106,392,429.12
  6. Step 6: Final answer
    x = 123,250,037.16

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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.