Home / 220,786,824.80-304,687,833.38-121,671,128.53

Finding the Fourth Proportional to 220,786,824.80, 304,687,833.38 and 121,671,128.53

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Solution

The fourth proportional to 220,786,824.80, 304,687,833.38 and 121,671,128.53 is: 167,907,267.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,786,824.80 : 304,687,833.38 = 121,671,128.53 : x
  2. Step 2: Convert to fraction form
    220,786,824.80/304,687,833.38 = 121,671,128.53/x
  3. Step 3: Cross multiply
    220,786,824.80x = 304,687,833.38 × 121,671,128.53
  4. Step 4: Simplify right side
    220,786,824.80x = 37,071,712,536,247,664
  5. Step 5: Solve for x
    x = 37,071,712,536,247,664/220,786,824.80
  6. Step 6: Final answer
    x = 167,907,267.88

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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.