Home / 303,723,096.21-455,750,499.56-128,818,924.65

Finding the Fourth Proportional to 303,723,096.21, 455,750,499.56 and 128,818,924.65

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Solution

The fourth proportional to 303,723,096.21, 455,750,499.56 and 128,818,924.65 is: 193,298,731.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,723,096.21 : 455,750,499.56 = 128,818,924.65 : x
  2. Step 2: Convert to fraction form
    303,723,096.21/455,750,499.56 = 128,818,924.65/x
  3. Step 3: Cross multiply
    303,723,096.21x = 455,750,499.56 × 128,818,924.65
  4. Step 4: Simplify right side
    303,723,096.21x = 58,709,289,261,375,408
  5. Step 5: Solve for x
    x = 58,709,289,261,375,408/303,723,096.21
  6. Step 6: Final answer
    x = 193,298,731.62

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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.