Home / 1,322,849,928.74-1,825,518,414.68-728,121,697.70

Finding the Fourth Proportional to 1,322,849,928.74, 1,825,518,414.68 and 728,121,697.70

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Solution

The fourth proportional to 1,322,849,928.74, 1,825,518,414.68 and 728,121,697.70 is: 1,004,799,968.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322,849,928.74 : 1,825,518,414.68 = 728,121,697.70 : x
  2. Step 2: Convert to fraction form
    1,322,849,928.74/1,825,518,414.68 = 728,121,697.70/x
  3. Step 3: Cross multiply
    1,322,849,928.74x = 1,825,518,414.68 × 728,121,697.70
  4. Step 4: Simplify right side
    1,322,849,928.74x = 1,329,199,567,275,773,696
  5. Step 5: Solve for x
    x = 1,329,199,567,275,773,696/1,322,849,928.74
  6. Step 6: Final answer
    x = 1,004,799,968.91

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Double scale
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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.