Home / 81,129,424.33-111,958,703.99-43,959,675.86

Finding the Fourth Proportional to 81,129,424.33, 111,958,703.99 and 43,959,675.86

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Solution

The fourth proportional to 81,129,424.33, 111,958,703.99 and 43,959,675.86 is: 60,664,406.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,129,424.33 : 111,958,703.99 = 43,959,675.86 : x
  2. Step 2: Convert to fraction form
    81,129,424.33/111,958,703.99 = 43,959,675.86/x
  3. Step 3: Cross multiply
    81,129,424.33x = 111,958,703.99 × 43,959,675.86
  4. Step 4: Simplify right side
    81,129,424.33x = 4,921,668,337,106,088
  5. Step 5: Solve for x
    x = 4,921,668,337,106,088/81,129,424.33
  6. Step 6: Final answer
    x = 60,664,406.01

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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.