Home / 127,007,998.80-190,511,998.20-126,112,203.60

Finding the Fourth Proportional to 127,007,998.80, 190,511,998.20 and 126,112,203.60

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Solution

The fourth proportional to 127,007,998.80, 190,511,998.20 and 126,112,203.60 is: 189,168,305.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,007,998.80 : 190,511,998.20 = 126,112,203.60 : x
  2. Step 2: Convert to fraction form
    127,007,998.80/190,511,998.20 = 126,112,203.60/x
  3. Step 3: Cross multiply
    127,007,998.80x = 190,511,998.20 × 126,112,203.60
  4. Step 4: Simplify right side
    127,007,998.80x = 24,025,887,905,241,232
  5. Step 5: Solve for x
    x = 24,025,887,905,241,232/127,007,998.80
  6. Step 6: Final answer
    x = 189,168,305.40

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1.5x scale

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.