Home / 291,453,221.60-436,899,896.40-168,505,330.40

Finding the Fourth Proportional to 291,453,221.60, 436,899,896.40 and 168,505,330.40

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Solution

The fourth proportional to 291,453,221.60, 436,899,896.40 and 168,505,330.40 is: 252,596,149.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,453,221.60 : 436,899,896.40 = 168,505,330.40 : x
  2. Step 2: Convert to fraction form
    291,453,221.60/436,899,896.40 = 168,505,330.40/x
  3. Step 3: Cross multiply
    291,453,221.60x = 436,899,896.40 × 168,505,330.40
  4. Step 4: Simplify right side
    291,453,221.60x = 73,619,961,394,607,776
  5. Step 5: Solve for x
    x = 73,619,961,394,607,776/291,453,221.60
  6. Step 6: Final answer
    x = 252,596,149.02

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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.