Home / 1,272,719,443.92-1,756,150,467.93-715,694,917.92

Finding the Fourth Proportional to 1,272,719,443.92, 1,756,150,467.93 and 715,694,917.92

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Solution

The fourth proportional to 1,272,719,443.92, 1,756,150,467.93 and 715,694,917.92 is: 987,545,189.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,719,443.92 : 1,756,150,467.93 = 715,694,917.92 : x
  2. Step 2: Convert to fraction form
    1,272,719,443.92/1,756,150,467.93 = 715,694,917.92/x
  3. Step 3: Cross multiply
    1,272,719,443.92x = 1,756,150,467.93 × 715,694,917.92
  4. Step 4: Simplify right side
    1,272,719,443.92x = 1,256,867,965,000,331,008
  5. Step 5: Solve for x
    x = 1,256,867,965,000,331,008/1,272,719,443.92
  6. Step 6: Final answer
    x = 987,545,189.95

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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.