Home / 28,740,006.20-43,110,009.30-12,783,654.20

Finding the Fourth Proportional to 28,740,006.20, 43,110,009.30 and 12,783,654.20

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Solution

The fourth proportional to 28,740,006.20, 43,110,009.30 and 12,783,654.20 is: 19,175,481.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,740,006.20 : 43,110,009.30 = 12,783,654.20 : x
  2. Step 2: Convert to fraction form
    28,740,006.20/43,110,009.30 = 12,783,654.20/x
  3. Step 3: Cross multiply
    28,740,006.20x = 43,110,009.30 × 12,783,654.20
  4. Step 4: Simplify right side
    28,740,006.20x = 551,103,451,449,984
  5. Step 5: Solve for x
    x = 551,103,451,449,984/28,740,006.20
  6. Step 6: Final answer
    x = 19,175,481.30

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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.