Home / 21,963,918.72-30,310,155.36-12,040,783.68

Finding the Fourth Proportional to 21,963,918.72, 30,310,155.36 and 12,040,783.68

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Solution

The fourth proportional to 21,963,918.72, 30,310,155.36 and 12,040,783.68 is: 16,616,252.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963,918.72 : 30,310,155.36 = 12,040,783.68 : x
  2. Step 2: Convert to fraction form
    21,963,918.72/30,310,155.36 = 12,040,783.68/x
  3. Step 3: Cross multiply
    21,963,918.72x = 30,310,155.36 × 12,040,783.68
  4. Step 4: Simplify right side
    21,963,918.72x = 364,958,023,996,952.50
  5. Step 5: Solve for x
    x = 364,958,023,996,952.50/21,963,918.72
  6. Step 6: Final answer
    x = 16,616,252.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.