Home / 115,028,153.19-172,627,923.78-84,401,873.01

Finding the Fourth Proportional to 115,028,153.19, 172,627,923.78 and 84,401,873.01

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Solution

The fourth proportional to 115,028,153.19, 172,627,923.78 and 84,401,873.01 is: 126,665,687.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,028,153.19 : 172,627,923.78 = 84,401,873.01 : x
  2. Step 2: Convert to fraction form
    115,028,153.19/172,627,923.78 = 84,401,873.01/x
  3. Step 3: Cross multiply
    115,028,153.19x = 172,627,923.78 × 84,401,873.01
  4. Step 4: Simplify right side
    115,028,153.19x = 14,570,120,100,859,520
  5. Step 5: Solve for x
    x = 14,570,120,100,859,520/115,028,153.19
  6. Step 6: Final answer
    x = 126,665,687.46

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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.