Home / 20,480,216.22-28,262,612.26-11,312,858.97

Finding the Fourth Proportional to 20,480,216.22, 28,262,612.26 and 11,312,858.97

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Solution

The fourth proportional to 20,480,216.22, 28,262,612.26 and 11,312,858.97 is: 15,611,697.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,480,216.22 : 28,262,612.26 = 11,312,858.97 : x
  2. Step 2: Convert to fraction form
    20,480,216.22/28,262,612.26 = 11,312,858.97/x
  3. Step 3: Cross multiply
    20,480,216.22x = 28,262,612.26 × 11,312,858.97
  4. Step 4: Simplify right side
    20,480,216.22x = 319,730,946,621,173
  5. Step 5: Solve for x
    x = 319,730,946,621,173/20,480,216.22
  6. Step 6: Final answer
    x = 15,611,697.81

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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.