Home / 220,806,867.96-304,715,561.85-121,691,240.64

Finding the Fourth Proportional to 220,806,867.96, 304,715,561.85 and 121,691,240.64

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Solution

The fourth proportional to 220,806,867.96, 304,715,561.85 and 121,691,240.64 is: 167,935,060.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,806,867.96 : 304,715,561.85 = 121,691,240.64 : x
  2. Step 2: Convert to fraction form
    220,806,867.96/304,715,561.85 = 121,691,240.64/x
  3. Step 3: Cross multiply
    220,806,867.96x = 304,715,561.85 × 121,691,240.64
  4. Step 4: Simplify right side
    220,806,867.96x = 37,081,214,763,841,160
  5. Step 5: Solve for x
    x = 37,081,214,763,841,160/220,806,867.96
  6. Step 6: Final answer
    x = 167,935,060.65

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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.