Home / 809,168,809.12-1,213,261,712.56-317,292,804.25

Finding the Fourth Proportional to 809,168,809.12, 1,213,261,712.56 and 317,292,804.25

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Solution

The fourth proportional to 809,168,809.12, 1,213,261,712.56 and 317,292,804.25 is: 475,746,478.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,168,809.12 : 1,213,261,712.56 = 317,292,804.25 : x
  2. Step 2: Convert to fraction form
    809,168,809.12/1,213,261,712.56 = 317,292,804.25/x
  3. Step 3: Cross multiply
    809,168,809.12x = 1,213,261,712.56 × 317,292,804.25
  4. Step 4: Simplify right side
    809,168,809.12x = 384,959,211,064,667,392
  5. Step 5: Solve for x
    x = 384,959,211,064,667,392/809,168,809.12
  6. Step 6: Final answer
    x = 475,746,478.02

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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.