Home / 81,009,764.32-111,809,410.32-61,396,442.32

Finding the Fourth Proportional to 81,009,764.32, 111,809,410.32 and 61,396,442.32

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Solution

The fourth proportional to 81,009,764.32, 111,809,410.32 and 61,396,442.32 is: 84,739,167.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,009,764.32 : 111,809,410.32 = 61,396,442.32 : x
  2. Step 2: Convert to fraction form
    81,009,764.32/111,809,410.32 = 61,396,442.32/x
  3. Step 3: Cross multiply
    81,009,764.32x = 111,809,410.32 × 61,396,442.32
  4. Step 4: Simplify right side
    81,009,764.32x = 6,864,700,011,545,092
  5. Step 5: Solve for x
    x = 6,864,700,011,545,092/81,009,764.32
  6. Step 6: Final answer
    x = 84,739,167.79

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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.