Home / 131,104,010.40-196,656,015.60-90,289,341.60

Finding the Fourth Proportional to 131,104,010.40, 196,656,015.60 and 90,289,341.60

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Solution

The fourth proportional to 131,104,010.40, 196,656,015.60 and 90,289,341.60 is: 135,434,012.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,104,010.40 : 196,656,015.60 = 90,289,341.60 : x
  2. Step 2: Convert to fraction form
    131,104,010.40/196,656,015.60 = 90,289,341.60/x
  3. Step 3: Cross multiply
    131,104,010.40x = 196,656,015.60 × 90,289,341.60
  4. Step 4: Simplify right side
    131,104,010.40x = 17,755,942,170,203,328
  5. Step 5: Solve for x
    x = 17,755,942,170,203,328/131,104,010.40
  6. Step 6: Final answer
    x = 135,434,012.40

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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.