Home / 81,007,027.12-111,789,694-43,837,308.56

Finding the Fourth Proportional to 81,007,027.12, 111,789,694 and 43,837,308.56

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Solution

The fourth proportional to 81,007,027.12, 111,789,694 and 43,837,308.56 is: 60,495,483.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,007,027.12 : 111,789,694 = 43,837,308.56 : x
  2. Step 2: Convert to fraction form
    81,007,027.12/111,789,694 = 43,837,308.56/x
  3. Step 3: Cross multiply
    81,007,027.12x = 111,789,694 × 43,837,308.56
  4. Step 4: Simplify right side
    81,007,027.12x = 4,900,559,309,705,981
  5. Step 5: Solve for x
    x = 4,900,559,309,705,981/81,007,027.12
  6. Step 6: Final answer
    x = 60,495,483.96

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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.