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Finding the Fourth Proportional to 18,713,848.40, 28,080,103.80 and 10,633,029.20

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Solution

The fourth proportional to 18,713,848.40, 28,080,103.80 and 10,633,029.20 is: 15,954,845.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,713,848.40 : 28,080,103.80 = 10,633,029.20 : x
  2. Step 2: Convert to fraction form
    18,713,848.40/28,080,103.80 = 10,633,029.20/x
  3. Step 3: Cross multiply
    18,713,848.40x = 28,080,103.80 × 10,633,029.20
  4. Step 4: Simplify right side
    18,713,848.40x = 298,576,563,644,430.94
  5. Step 5: Solve for x
    x = 298,576,563,644,430.94/18,713,848.40
  6. Step 6: Final answer
    x = 15,954,845.70

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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.