Home / 20,288,638.07-30,361,118.34-12,615,896.06

Finding the Fourth Proportional to 20,288,638.07, 30,361,118.34 and 12,615,896.06

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Solution

The fourth proportional to 20,288,638.07, 30,361,118.34 and 12,615,896.06 is: 18,879,173.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,288,638.07 : 30,361,118.34 = 12,615,896.06 : x
  2. Step 2: Convert to fraction form
    20,288,638.07/30,361,118.34 = 12,615,896.06/x
  3. Step 3: Cross multiply
    20,288,638.07x = 30,361,118.34 × 12,615,896.06
  4. Step 4: Simplify right side
    20,288,638.07x = 383,032,713,242,799.75
  5. Step 5: Solve for x
    x = 383,032,713,242,799.75/20,288,638.07
  6. Step 6: Final answer
    x = 18,879,173.26

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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.