Home / 291,081,944.80-436,622,917.20-287,255,569.60

Finding the Fourth Proportional to 291,081,944.80, 436,622,917.20 and 287,255,569.60

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Solution

The fourth proportional to 291,081,944.80, 436,622,917.20 and 287,255,569.60 is: 430,883,354.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,081,944.80 : 436,622,917.20 = 287,255,569.60 : x
  2. Step 2: Convert to fraction form
    291,081,944.80/436,622,917.20 = 287,255,569.60/x
  3. Step 3: Cross multiply
    291,081,944.80x = 436,622,917.20 × 287,255,569.60
  4. Step 4: Simplify right side
    291,081,944.80x = 125,422,364,780,699,648
  5. Step 5: Solve for x
    x = 125,422,364,780,699,648/291,081,944.80
  6. Step 6: Final answer
    x = 430,883,354.40

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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.