Home / 131,106,972.80-196,686,703.20-38,990,532.80

Finding the Fourth Proportional to 131,106,972.80, 196,686,703.20 and 38,990,532.80

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Solution

The fourth proportional to 131,106,972.80, 196,686,703.20 and 38,990,532.80 is: 58,493,604.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,106,972.80 : 196,686,703.20 = 38,990,532.80 : x
  2. Step 2: Convert to fraction form
    131,106,972.80/196,686,703.20 = 38,990,532.80/x
  3. Step 3: Cross multiply
    131,106,972.80x = 196,686,703.20 × 38,990,532.80
  4. Step 4: Simplify right side
    131,106,972.80x = 7,668,919,352,443,464
  5. Step 5: Solve for x
    x = 7,668,919,352,443,464/131,106,972.80
  6. Step 6: Final answer
    x = 58,493,604.03

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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.