Home / 21,032,181.60-31,548,272.40-8,253,103.20

Finding the Fourth Proportional to 21,032,181.60, 31,548,272.40 and 8,253,103.20

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Solution

The fourth proportional to 21,032,181.60, 31,548,272.40 and 8,253,103.20 is: 12,379,654.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032,181.60 : 31,548,272.40 = 8,253,103.20 : x
  2. Step 2: Convert to fraction form
    21,032,181.60/31,548,272.40 = 8,253,103.20/x
  3. Step 3: Cross multiply
    21,032,181.60x = 31,548,272.40 × 8,253,103.20
  4. Step 4: Simplify right side
    21,032,181.60x = 260,371,147,898,911.69
  5. Step 5: Solve for x
    x = 260,371,147,898,911.69/21,032,181.60
  6. Step 6: Final answer
    x = 12,379,654.80

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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.