Home / 130,297,891.20-195,446,836.80-99,686,889.60

Finding the Fourth Proportional to 130,297,891.20, 195,446,836.80 and 99,686,889.60

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Solution

The fourth proportional to 130,297,891.20, 195,446,836.80 and 99,686,889.60 is: 149,530,334.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,297,891.20 : 195,446,836.80 = 99,686,889.60 : x
  2. Step 2: Convert to fraction form
    130,297,891.20/195,446,836.80 = 99,686,889.60/x
  3. Step 3: Cross multiply
    130,297,891.20x = 195,446,836.80 × 99,686,889.60
  4. Step 4: Simplify right side
    130,297,891.20x = 19,483,487,242,750,816
  5. Step 5: Solve for x
    x = 19,483,487,242,750,816/130,297,891.20
  6. Step 6: Final answer
    x = 149,530,334.40

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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.