Home / 65,760,443-90,794,065.76-40,990,539.32

Finding the Fourth Proportional to 65,760,443, 90,794,065.76 and 40,990,539.32

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Solution

The fourth proportional to 65,760,443, 90,794,065.76 and 40,990,539.32 is: 56,594,778.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,760,443 : 90,794,065.76 = 40,990,539.32 : x
  2. Step 2: Convert to fraction form
    65,760,443/90,794,065.76 = 40,990,539.32/x
  3. Step 3: Cross multiply
    65,760,443x = 90,794,065.76 × 40,990,539.32
  4. Step 4: Simplify right side
    65,760,443x = 3,721,697,722,557,946
  5. Step 5: Solve for x
    x = 3,721,697,722,557,946/65,760,443
  6. Step 6: Final answer
    x = 56,594,778.76

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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.