Home / 291,346,976.40-436,950,480.60-168,259,117.20

Finding the Fourth Proportional to 291,346,976.40, 436,950,480.60 and 168,259,117.20

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Solution

The fourth proportional to 291,346,976.40, 436,950,480.60 and 168,259,117.20 is: 252,348,258.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,346,976.40 : 436,950,480.60 = 168,259,117.20 : x
  2. Step 2: Convert to fraction form
    291,346,976.40/436,950,480.60 = 168,259,117.20/x
  3. Step 3: Cross multiply
    291,346,976.40x = 436,950,480.60 × 168,259,117.20
  4. Step 4: Simplify right side
    291,346,976.40x = 73,520,902,125,871,728
  5. Step 5: Solve for x
    x = 73,520,902,125,871,728/291,346,976.40
  6. Step 6: Final answer
    x = 252,348,258.54

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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.