Home / 161,752,672.80-242,629,009.20-145,628,359.20

Finding the Fourth Proportional to 161,752,672.80, 242,629,009.20 and 145,628,359.20

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Solution

The fourth proportional to 161,752,672.80, 242,629,009.20 and 145,628,359.20 is: 218,442,538.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,752,672.80 : 242,629,009.20 = 145,628,359.20 : x
  2. Step 2: Convert to fraction form
    161,752,672.80/242,629,009.20 = 145,628,359.20/x
  3. Step 3: Cross multiply
    161,752,672.80x = 242,629,009.20 × 145,628,359.20
  4. Step 4: Simplify right side
    161,752,672.80x = 35,333,664,504,117,700
  5. Step 5: Solve for x
    x = 35,333,664,504,117,700/161,752,672.80
  6. Step 6: Final answer
    x = 218,442,538.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.