Home / 1,287,083,393.78-1,930,643,028.94-366,959,733.62

Finding the Fourth Proportional to 1,287,083,393.78, 1,930,643,028.94 and 366,959,733.62

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Solution

The fourth proportional to 1,287,083,393.78, 1,930,643,028.94 and 366,959,733.62 is: 550,444,714.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,083,393.78 : 1,930,643,028.94 = 366,959,733.62 : x
  2. Step 2: Convert to fraction form
    1,287,083,393.78/1,930,643,028.94 = 366,959,733.62/x
  3. Step 3: Cross multiply
    1,287,083,393.78x = 1,930,643,028.94 × 366,959,733.62
  4. Step 4: Simplify right side
    1,287,083,393.78x = 708,468,251,615,132,416
  5. Step 5: Solve for x
    x = 708,468,251,615,132,416/1,287,083,393.78
  6. Step 6: Final answer
    x = 550,444,714.80

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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.