Home / 20,704,239.32-28,573,975.86-12,446,974.52

Finding the Fourth Proportional to 20,704,239.32, 28,573,975.86 and 12,446,974.52

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Solution

The fourth proportional to 20,704,239.32, 28,573,975.86 and 12,446,974.52 is: 17,178,102.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704,239.32 : 28,573,975.86 = 12,446,974.52 : x
  2. Step 2: Convert to fraction form
    20,704,239.32/28,573,975.86 = 12,446,974.52/x
  3. Step 3: Cross multiply
    20,704,239.32x = 28,573,975.86 × 12,446,974.52
  4. Step 4: Simplify right side
    20,704,239.32x = 355,659,549,464,515.06
  5. Step 5: Solve for x
    x = 355,659,549,464,515.06/20,704,239.32
  6. Step 6: Final answer
    x = 17,178,102.70

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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.