Home / 431,796,209.60-647,694,314.40-354,312,111.80

Finding the Fourth Proportional to 431,796,209.60, 647,694,314.40 and 354,312,111.80

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Solution

The fourth proportional to 431,796,209.60, 647,694,314.40 and 354,312,111.80 is: 531,468,167.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,796,209.60 : 647,694,314.40 = 354,312,111.80 : x
  2. Step 2: Convert to fraction form
    431,796,209.60/647,694,314.40 = 354,312,111.80/x
  3. Step 3: Cross multiply
    431,796,209.60x = 647,694,314.40 × 354,312,111.80
  4. Step 4: Simplify right side
    431,796,209.60x = 229,485,940,335,917,152
  5. Step 5: Solve for x
    x = 229,485,940,335,917,152/431,796,209.60
  6. Step 6: Final answer
    x = 531,468,167.70

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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.