Home / 159,972,165.60-220,760,489.52-86,631,629.28

Finding the Fourth Proportional to 159,972,165.60, 220,760,489.52 and 86,631,629.28

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Solution

The fourth proportional to 159,972,165.60, 220,760,489.52 and 86,631,629.28 is: 119,551,053.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,972,165.60 : 220,760,489.52 = 86,631,629.28 : x
  2. Step 2: Convert to fraction form
    159,972,165.60/220,760,489.52 = 86,631,629.28/x
  3. Step 3: Cross multiply
    159,972,165.60x = 220,760,489.52 × 86,631,629.28
  4. Step 4: Simplify right side
    159,972,165.60x = 19,124,840,887,767,968
  5. Step 5: Solve for x
    x = 19,124,840,887,767,968/159,972,165.60
  6. Step 6: Final answer
    x = 119,551,053.25

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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.