Home / 909,660,682-1,255,331,743.16-491,972,967.28

Finding the Fourth Proportional to 909,660,682, 1,255,331,743.16 and 491,972,967.28

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Solution

The fourth proportional to 909,660,682, 1,255,331,743.16 and 491,972,967.28 is: 678,922,695.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,660,682 : 1,255,331,743.16 = 491,972,967.28 : x
  2. Step 2: Convert to fraction form
    909,660,682/1,255,331,743.16 = 491,972,967.28/x
  3. Step 3: Cross multiply
    909,660,682x = 1,255,331,743.16 × 491,972,967.28
  4. Step 4: Simplify right side
    909,660,682x = 617,589,282,603,200,000
  5. Step 5: Solve for x
    x = 617,589,282,603,200,000/909,660,682
  6. Step 6: Final answer
    x = 678,922,695.93

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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.