Home / 21,384,003.60-32,076,005.40-19,219,165.20

Finding the Fourth Proportional to 21,384,003.60, 32,076,005.40 and 19,219,165.20

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Solution

The fourth proportional to 21,384,003.60, 32,076,005.40 and 19,219,165.20 is: 28,828,747.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,384,003.60 : 32,076,005.40 = 19,219,165.20 : x
  2. Step 2: Convert to fraction form
    21,384,003.60/32,076,005.40 = 19,219,165.20/x
  3. Step 3: Cross multiply
    21,384,003.60x = 32,076,005.40 × 19,219,165.20
  4. Step 4: Simplify right side
    21,384,003.60x = 616,474,046,738,692
  5. Step 5: Solve for x
    x = 616,474,046,738,692/21,384,003.60
  6. Step 6: Final answer
    x = 28,828,747.80

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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.