Home / 21,762,616.78-30,032,410.15-11,972,850.80

Finding the Fourth Proportional to 21,762,616.78, 30,032,410.15 and 11,972,850.80

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Solution

The fourth proportional to 21,762,616.78, 30,032,410.15 and 11,972,850.80 is: 16,522,533.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,762,616.78 : 30,032,410.15 = 11,972,850.80 : x
  2. Step 2: Convert to fraction form
    21,762,616.78/30,032,410.15 = 11,972,850.80/x
  3. Step 3: Cross multiply
    21,762,616.78x = 30,032,410.15 × 11,972,850.80
  4. Step 4: Simplify right side
    21,762,616.78x = 359,573,565,772,293.50
  5. Step 5: Solve for x
    x = 359,573,565,772,293.50/21,762,616.78
  6. Step 6: Final answer
    x = 16,522,533.54

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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.