Home / 20,288,635.07-30,361,113.84-12,615,893.06

Finding the Fourth Proportional to 20,288,635.07, 30,361,113.84 and 12,615,893.06

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Solution

The fourth proportional to 20,288,635.07, 30,361,113.84 and 12,615,893.06 is: 18,879,168.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,288,635.07 : 30,361,113.84 = 12,615,893.06 : x
  2. Step 2: Convert to fraction form
    20,288,635.07/30,361,113.84 = 12,615,893.06/x
  3. Step 3: Cross multiply
    20,288,635.07x = 30,361,113.84 × 12,615,893.06
  4. Step 4: Simplify right side
    20,288,635.07x = 383,032,565,387,925.94
  5. Step 5: Solve for x
    x = 383,032,565,387,925.94/20,288,635.07
  6. Step 6: Final answer
    x = 18,879,168.76

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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.