Home / 13,146,747.70-19,720,121.55-12,262,011.70

Finding the Fourth Proportional to 13,146,747.70, 19,720,121.55 and 12,262,011.70

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Solution

The fourth proportional to 13,146,747.70, 19,720,121.55 and 12,262,011.70 is: 18,393,017.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146,747.70 : 19,720,121.55 = 12,262,011.70 : x
  2. Step 2: Convert to fraction form
    13,146,747.70/19,720,121.55 = 12,262,011.70/x
  3. Step 3: Cross multiply
    13,146,747.70x = 19,720,121.55 × 12,262,011.70
  4. Step 4: Simplify right side
    13,146,747.70x = 241,808,361,171,522.12
  5. Step 5: Solve for x
    x = 241,808,361,171,522.12/13,146,747.70
  6. Step 6: Final answer
    x = 18,393,017.55

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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.