Home / 291,989,633.68-402,945,820.62-159,831,383.96

Finding the Fourth Proportional to 291,989,633.68, 402,945,820.62 and 159,831,383.96

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Solution

The fourth proportional to 291,989,633.68, 402,945,820.62 and 159,831,383.96 is: 220,567,378.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,989,633.68 : 402,945,820.62 = 159,831,383.96 : x
  2. Step 2: Convert to fraction form
    291,989,633.68/402,945,820.62 = 159,831,383.96/x
  3. Step 3: Cross multiply
    291,989,633.68x = 402,945,820.62 × 159,831,383.96
  4. Step 4: Simplify right side
    291,989,633.68x = 64,403,388,170,592,512
  5. Step 5: Solve for x
    x = 64,403,388,170,592,512/291,989,633.68
  6. Step 6: Final answer
    x = 220,567,378.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.