Home / 139,599,008.10-209,398,512.15-127,505,772.90

Finding the Fourth Proportional to 139,599,008.10, 209,398,512.15 and 127,505,772.90

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Solution

The fourth proportional to 139,599,008.10, 209,398,512.15 and 127,505,772.90 is: 191,258,659.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,599,008.10 : 209,398,512.15 = 127,505,772.90 : x
  2. Step 2: Convert to fraction form
    139,599,008.10/209,398,512.15 = 127,505,772.90/x
  3. Step 3: Cross multiply
    139,599,008.10x = 209,398,512.15 × 127,505,772.90
  4. Step 4: Simplify right side
    139,599,008.10x = 26,699,519,135,795,792
  5. Step 5: Solve for x
    x = 26,699,519,135,795,792/139,599,008.10
  6. Step 6: Final answer
    x = 191,258,659.35

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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.