Home / 879,170,619.78-1,213,257,842.73-482,719,287.96

Finding the Fourth Proportional to 879,170,619.78, 1,213,257,842.73 and 482,719,287.96

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Solution

The fourth proportional to 879,170,619.78, 1,213,257,842.73 and 482,719,287.96 is: 666,153,928.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,170,619.78 : 1,213,257,842.73 = 482,719,287.96 : x
  2. Step 2: Convert to fraction form
    879,170,619.78/1,213,257,842.73 = 482,719,287.96/x
  3. Step 3: Cross multiply
    879,170,619.78x = 1,213,257,842.73 × 482,719,287.96
  4. Step 4: Simplify right side
    879,170,619.78x = 585,662,961,954,511,232
  5. Step 5: Solve for x
    x = 585,662,961,954,511,232/879,170,619.78
  6. Step 6: Final answer
    x = 666,153,928.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.