Home / 130,297,840.20-195,446,760.30-99,686,838.60

Finding the Fourth Proportional to 130,297,840.20, 195,446,760.30 and 99,686,838.60

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Solution

The fourth proportional to 130,297,840.20, 195,446,760.30 and 99,686,838.60 is: 149,530,257.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,297,840.20 : 195,446,760.30 = 99,686,838.60 : x
  2. Step 2: Convert to fraction form
    130,297,840.20/195,446,760.30 = 99,686,838.60/x
  3. Step 3: Cross multiply
    130,297,840.20x = 195,446,760.30 × 99,686,838.60
  4. Step 4: Simplify right side
    130,297,840.20x = 19,483,469,648,918,988
  5. Step 5: Solve for x
    x = 19,483,469,648,918,988/130,297,840.20
  6. Step 6: Final answer
    x = 149,530,257.90

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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.