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Finding the Fourth Proportional to 404,459,139.80, 606,688,709.70 and 336,378,704.60

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Solution

The fourth proportional to 404,459,139.80, 606,688,709.70 and 336,378,704.60 is: 504,568,056.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,459,139.80 : 606,688,709.70 = 336,378,704.60 : x
  2. Step 2: Convert to fraction form
    404,459,139.80/606,688,709.70 = 336,378,704.60/x
  3. Step 3: Cross multiply
    404,459,139.80x = 606,688,709.70 × 336,378,704.60
  4. Step 4: Simplify right side
    404,459,139.80x = 204,077,162,264,331,488
  5. Step 5: Solve for x
    x = 204,077,162,264,331,488/404,459,139.80
  6. Step 6: Final answer
    x = 504,568,056.90

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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.