Home / 459,660,601.70-689,490,902.55-287,667,923.30

Finding the Fourth Proportional to 459,660,601.70, 689,490,902.55 and 287,667,923.30

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Solution

The fourth proportional to 459,660,601.70, 689,490,902.55 and 287,667,923.30 is: 431,501,884.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,660,601.70 : 689,490,902.55 = 287,667,923.30 : x
  2. Step 2: Convert to fraction form
    459,660,601.70/689,490,902.55 = 287,667,923.30/x
  3. Step 3: Cross multiply
    459,660,601.70x = 689,490,902.55 × 287,667,923.30
  4. Step 4: Simplify right side
    459,660,601.70x = 198,344,416,070,801,184
  5. Step 5: Solve for x
    x = 198,344,416,070,801,184/459,660,601.70
  6. Step 6: Final answer
    x = 431,501,884.95

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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.