Home / 21,405,120.35-29,539,146.32-11,615,566.56

Finding the Fourth Proportional to 21,405,120.35, 29,539,146.32 and 11,615,566.56

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Solution

The fourth proportional to 21,405,120.35, 29,539,146.32 and 11,615,566.56 is: 16,029,525.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,405,120.35 : 29,539,146.32 = 11,615,566.56 : x
  2. Step 2: Convert to fraction form
    21,405,120.35/29,539,146.32 = 11,615,566.56/x
  3. Step 3: Cross multiply
    21,405,120.35x = 29,539,146.32 × 11,615,566.56
  4. Step 4: Simplify right side
    21,405,120.35x = 343,113,920,080,247.81
  5. Step 5: Solve for x
    x = 343,113,920,080,247.81/21,405,120.35
  6. Step 6: Final answer
    x = 16,029,525.39

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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.