Home / 220,829,261.80-304,731,945.57-121,709,708.86

Finding the Fourth Proportional to 220,829,261.80, 304,731,945.57 and 121,709,708.86

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Solution

The fourth proportional to 220,829,261.80, 304,731,945.57 and 121,709,708.86 is: 167,952,544.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,829,261.80 : 304,731,945.57 = 121,709,708.86 : x
  2. Step 2: Convert to fraction form
    220,829,261.80/304,731,945.57 = 121,709,708.86/x
  3. Step 3: Cross multiply
    220,829,261.80x = 304,731,945.57 × 121,709,708.86
  4. Step 4: Simplify right side
    220,829,261.80x = 37,088,836,375,666,064
  5. Step 5: Solve for x
    x = 37,088,836,375,666,064/220,829,261.80
  6. Step 6: Final answer
    x = 167,952,544.30

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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.