Home / 252,451,150.41-378,909,504.72-128,041,094.31

Finding the Fourth Proportional to 252,451,150.41, 378,909,504.72 and 128,041,094.31

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Solution

The fourth proportional to 252,451,150.41, 378,909,504.72 and 128,041,094.31 is: 192,179,705.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,451,150.41 : 378,909,504.72 = 128,041,094.31 : x
  2. Step 2: Convert to fraction form
    252,451,150.41/378,909,504.72 = 128,041,094.31/x
  3. Step 3: Cross multiply
    252,451,150.41x = 378,909,504.72 × 128,041,094.31
  4. Step 4: Simplify right side
    252,451,150.41x = 48,515,987,628,808,912
  5. Step 5: Solve for x
    x = 48,515,987,628,808,912/252,451,150.41
  6. Step 6: Final answer
    x = 192,179,705.06

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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.