Home / 21,252,142.08-31,878,103.97-8,299,607.85

Finding the Fourth Proportional to 21,252,142.08, 31,878,103.97 and 8,299,607.85

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Solution

The fourth proportional to 21,252,142.08, 31,878,103.97 and 8,299,607.85 is: 12,449,369.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,252,142.08 : 31,878,103.97 = 8,299,607.85 : x
  2. Step 2: Convert to fraction form
    21,252,142.08/31,878,103.97 = 8,299,607.85/x
  3. Step 3: Cross multiply
    21,252,142.08x = 31,878,103.97 × 8,299,607.85
  4. Step 4: Simplify right side
    21,252,142.08x = 264,575,761,973,277.19
  5. Step 5: Solve for x
    x = 264,575,761,973,277.19/21,252,142.08
  6. Step 6: Final answer
    x = 12,449,369.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.