Home / 21,384,009.85-32,076,014.78-19,219,171.45

Finding the Fourth Proportional to 21,384,009.85, 32,076,014.78 and 19,219,171.45

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Solution

The fourth proportional to 21,384,009.85, 32,076,014.78 and 19,219,171.45 is: 28,828,757.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,384,009.85 : 32,076,014.78 = 19,219,171.45 : x
  2. Step 2: Convert to fraction form
    21,384,009.85/32,076,014.78 = 19,219,171.45/x
  3. Step 3: Cross multiply
    21,384,009.85x = 32,076,014.78 × 19,219,171.45
  4. Step 4: Simplify right side
    21,384,009.85x = 616,474,427,393,458.12
  5. Step 5: Solve for x
    x = 616,474,427,393,458.12/21,384,009.85
  6. Step 6: Final answer
    x = 28,828,757.18

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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.