Home / 21,853,465.21-30,156,991.59-12,063,699.28

Finding the Fourth Proportional to 21,853,465.21, 30,156,991.59 and 12,063,699.28

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Solution

The fourth proportional to 21,853,465.21, 30,156,991.59 and 12,063,699.28 is: 16,647,468.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,853,465.21 : 30,156,991.59 = 12,063,699.28 : x
  2. Step 2: Convert to fraction form
    21,853,465.21/30,156,991.59 = 12,063,699.28/x
  3. Step 3: Cross multiply
    21,853,465.21x = 30,156,991.59 × 12,063,699.28
  4. Step 4: Simplify right side
    21,853,465.21x = 363,804,877,731,249.06
  5. Step 5: Solve for x
    x = 363,804,877,731,249.06/21,853,465.21
  6. Step 6: Final answer
    x = 16,647,468.68

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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.