Home / 220,891,286.48-304,830,896.06-121,769,856.32

Finding the Fourth Proportional to 220,891,286.48, 304,830,896.06 and 121,769,856.32

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Solution

The fourth proportional to 220,891,286.48, 304,830,896.06 and 121,769,856.32 is: 168,042,909.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,891,286.48 : 304,830,896.06 = 121,769,856.32 : x
  2. Step 2: Convert to fraction form
    220,891,286.48/304,830,896.06 = 121,769,856.32/x
  3. Step 3: Cross multiply
    220,891,286.48x = 304,830,896.06 × 121,769,856.32
  4. Step 4: Simplify right side
    220,891,286.48x = 37,119,214,413,903,320
  5. Step 5: Solve for x
    x = 37,119,214,413,903,320/220,891,286.48
  6. Step 6: Final answer
    x = 168,042,909.28

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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.