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Finding the Fourth Proportional to 18,387,801.30, 27,539,711.55 and 10,829,529.30

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Solution

The fourth proportional to 18,387,801.30, 27,539,711.55 and 10,829,529.30 is: 16,219,563.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,387,801.30 : 27,539,711.55 = 10,829,529.30 : x
  2. Step 2: Convert to fraction form
    18,387,801.30/27,539,711.55 = 10,829,529.30/x
  3. Step 3: Cross multiply
    18,387,801.30x = 27,539,711.55 × 10,829,529.30
  4. Step 4: Simplify right side
    18,387,801.30x = 298,242,113,144,273.44
  5. Step 5: Solve for x
    x = 298,242,113,144,273.44/18,387,801.30
  6. Step 6: Final answer
    x = 16,219,563.63

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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.