Home / 291,081,946.80-436,622,920.20-287,255,571.60

Finding the Fourth Proportional to 291,081,946.80, 436,622,920.20 and 287,255,571.60

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Solution

The fourth proportional to 291,081,946.80, 436,622,920.20 and 287,255,571.60 is: 430,883,357.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,081,946.80 : 436,622,920.20 = 287,255,571.60 : x
  2. Step 2: Convert to fraction form
    291,081,946.80/436,622,920.20 = 287,255,571.60/x
  3. Step 3: Cross multiply
    291,081,946.80x = 436,622,920.20 × 287,255,571.60
  4. Step 4: Simplify right side
    291,081,946.80x = 125,422,366,515,712,192
  5. Step 5: Solve for x
    x = 125,422,366,515,712,192/291,081,946.80
  6. Step 6: Final answer
    x = 430,883,357.40

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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.