Home / 1,072,147,037.39-1,479,103,957.71-669,561,863.70

Finding the Fourth Proportional to 1,072,147,037.39, 1,479,103,957.71 and 669,561,863.70

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Solution

The fourth proportional to 1,072,147,037.39, 1,479,103,957.71 and 669,561,863.70 is: 923,708,752.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,147,037.39 : 1,479,103,957.71 = 669,561,863.70 : x
  2. Step 2: Convert to fraction form
    1,072,147,037.39/1,479,103,957.71 = 669,561,863.70/x
  3. Step 3: Cross multiply
    1,072,147,037.39x = 1,479,103,957.71 × 669,561,863.70
  4. Step 4: Simplify right side
    1,072,147,037.39x = 990,351,602,530,353,664
  5. Step 5: Solve for x
    x = 990,351,602,530,353,664/1,072,147,037.39
  6. Step 6: Final answer
    x = 923,708,752.62

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Double scale
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1.5x scale

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.