Home / 20,159,392.70-30,239,089.05-12,097,235.90

Finding the Fourth Proportional to 20,159,392.70, 30,239,089.05 and 12,097,235.90

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Solution

The fourth proportional to 20,159,392.70, 30,239,089.05 and 12,097,235.90 is: 18,145,853.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,159,392.70 : 30,239,089.05 = 12,097,235.90 : x
  2. Step 2: Convert to fraction form
    20,159,392.70/30,239,089.05 = 12,097,235.90/x
  3. Step 3: Cross multiply
    20,159,392.70x = 30,239,089.05 × 12,097,235.90
  4. Step 4: Simplify right side
    20,159,392.70x = 365,809,393,638,956.94
  5. Step 5: Solve for x
    x = 365,809,393,638,956.94/20,159,392.70
  6. Step 6: Final answer
    x = 18,145,853.85

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1.5x scale

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.