Home / 21,858,109.90-30,164,661.90-12,069,172.73

Finding the Fourth Proportional to 21,858,109.90, 30,164,661.90 and 12,069,172.73

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Solution

The fourth proportional to 21,858,109.90, 30,164,661.90 and 12,069,172.73 is: 16,655,718.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,858,109.90 : 30,164,661.90 = 12,069,172.73 : x
  2. Step 2: Convert to fraction form
    21,858,109.90/30,164,661.90 = 12,069,172.73/x
  3. Step 3: Cross multiply
    21,858,109.90x = 30,164,661.90 × 12,069,172.73
  4. Step 4: Simplify right side
    21,858,109.90x = 364,062,514,837,653.88
  5. Step 5: Solve for x
    x = 364,062,514,837,653.88/21,858,109.90
  6. Step 6: Final answer
    x = 16,655,718.02

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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.