Home / 827,005,514.30-1,240,508,271.45-639,752,277.95

Finding the Fourth Proportional to 827,005,514.30, 1,240,508,271.45 and 639,752,277.95

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Solution

The fourth proportional to 827,005,514.30, 1,240,508,271.45 and 639,752,277.95 is: 959,628,416.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,005,514.30 : 1,240,508,271.45 = 639,752,277.95 : x
  2. Step 2: Convert to fraction form
    827,005,514.30/1,240,508,271.45 = 639,752,277.95/x
  3. Step 3: Cross multiply
    827,005,514.30x = 1,240,508,271.45 × 639,752,277.95
  4. Step 4: Simplify right side
    827,005,514.30x = 793,617,992,475,954,560
  5. Step 5: Solve for x
    x = 793,617,992,475,954,560/827,005,514.30
  6. Step 6: Final answer
    x = 959,628,416.93

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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.