Home / 68,198,538.10-102,285,483.45-19,664,459.14

Finding the Fourth Proportional to 68,198,538.10, 102,285,483.45 and 19,664,459.14

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Solution

The fourth proportional to 68,198,538.10, 102,285,483.45 and 19,664,459.14 is: 29,493,135.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,198,538.10 : 102,285,483.45 = 19,664,459.14 : x
  2. Step 2: Convert to fraction form
    68,198,538.10/102,285,483.45 = 19,664,459.14/x
  3. Step 3: Cross multiply
    68,198,538.10x = 102,285,483.45 × 19,664,459.14
  4. Step 4: Simplify right side
    68,198,538.10x = 2,011,388,709,917,671.25
  5. Step 5: Solve for x
    x = 2,011,388,709,917,671.25/68,198,538.10
  6. Step 6: Final answer
    x = 29,493,135.28

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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.