Home / 387,923,165.06-535,346,458.89-220,655,138.90

Finding the Fourth Proportional to 387,923,165.06, 535,346,458.89 and 220,655,138.90

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Solution

The fourth proportional to 387,923,165.06, 535,346,458.89 and 220,655,138.90 is: 304,511,196.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,923,165.06 : 535,346,458.89 = 220,655,138.90 : x
  2. Step 2: Convert to fraction form
    387,923,165.06/535,346,458.89 = 220,655,138.90/x
  3. Step 3: Cross multiply
    387,923,165.06x = 535,346,458.89 × 220,655,138.90
  4. Step 4: Simplify right side
    387,923,165.06x = 118,126,947,245,996,096
  5. Step 5: Solve for x
    x = 118,126,947,245,996,096/387,923,165.06
  6. Step 6: Final answer
    x = 304,511,196.77

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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.