Home / 137,617,667.40-206,426,501.10-76,395,664.20

Finding the Fourth Proportional to 137,617,667.40, 206,426,501.10 and 76,395,664.20

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Solution

The fourth proportional to 137,617,667.40, 206,426,501.10 and 76,395,664.20 is: 114,593,496.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,617,667.40 : 206,426,501.10 = 76,395,664.20 : x
  2. Step 2: Convert to fraction form
    137,617,667.40/206,426,501.10 = 76,395,664.20/x
  3. Step 3: Cross multiply
    137,617,667.40x = 206,426,501.10 × 76,395,664.20
  4. Step 4: Simplify right side
    137,617,667.40x = 15,770,089,660,016,530
  5. Step 5: Solve for x
    x = 15,770,089,660,016,530/137,617,667.40
  6. Step 6: Final answer
    x = 114,593,496.30

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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.