Home / 81,355,719.87-112,205,960.78-53,507,027.39

Finding the Fourth Proportional to 81,355,719.87, 112,205,960.78 and 53,507,027.39

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Solution

The fourth proportional to 81,355,719.87, 112,205,960.78 and 53,507,027.39 is: 73,796,992.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,355,719.87 : 112,205,960.78 = 53,507,027.39 : x
  2. Step 2: Convert to fraction form
    81,355,719.87/112,205,960.78 = 53,507,027.39/x
  3. Step 3: Cross multiply
    81,355,719.87x = 112,205,960.78 × 53,507,027.39
  4. Step 4: Simplify right side
    81,355,719.87x = 6,003,807,415,948,161
  5. Step 5: Solve for x
    x = 6,003,807,415,948,161/81,355,719.87
  6. Step 6: Final answer
    x = 73,796,992.09

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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.