Home / 81,145,197.74-111,945,184.91-53,681,376.62

Finding the Fourth Proportional to 81,145,197.74, 111,945,184.91 and 53,681,376.62

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Solution

The fourth proportional to 81,145,197.74, 111,945,184.91 and 53,681,376.62 is: 74,057,021.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,145,197.74 : 111,945,184.91 = 53,681,376.62 : x
  2. Step 2: Convert to fraction form
    81,145,197.74/111,945,184.91 = 53,681,376.62/x
  3. Step 3: Cross multiply
    81,145,197.74x = 111,945,184.91 × 53,681,376.62
  4. Step 4: Simplify right side
    81,145,197.74x = 6,009,371,631,121,118
  5. Step 5: Solve for x
    x = 6,009,371,631,121,118/81,145,197.74
  6. Step 6: Final answer
    x = 74,057,021.23

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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.