Home / 220,846,003.20-304,749,563.85-128,032,489.71

Finding the Fourth Proportional to 220,846,003.20, 304,749,563.85 and 128,032,489.71

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Solution

The fourth proportional to 220,846,003.20, 304,749,563.85 and 128,032,489.71 is: 176,674,446.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,846,003.20 : 304,749,563.85 = 128,032,489.71 : x
  2. Step 2: Convert to fraction form
    220,846,003.20/304,749,563.85 = 128,032,489.71/x
  3. Step 3: Cross multiply
    220,846,003.20x = 304,749,563.85 × 128,032,489.71
  4. Step 4: Simplify right side
    220,846,003.20x = 39,017,845,397,752,112
  5. Step 5: Solve for x
    x = 39,017,845,397,752,112/220,846,003.20
  6. Step 6: Final answer
    x = 176,674,446.59

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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.