Home / 21,615,245.66-29,824,155.78-12,911,714.66

Finding the Fourth Proportional to 21,615,245.66, 29,824,155.78 and 12,911,714.66

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Solution

The fourth proportional to 21,615,245.66, 29,824,155.78 and 12,911,714.66 is: 17,815,249.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,615,245.66 : 29,824,155.78 = 12,911,714.66 : x
  2. Step 2: Convert to fraction form
    21,615,245.66/29,824,155.78 = 12,911,714.66/x
  3. Step 3: Cross multiply
    21,615,245.66x = 29,824,155.78 × 12,911,714.66
  4. Step 4: Simplify right side
    21,615,245.66x = 385,080,989,406,749.75
  5. Step 5: Solve for x
    x = 385,080,989,406,749.75/21,615,245.66
  6. Step 6: Final answer
    x = 17,815,249.27

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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.