Home / 556,568,815.20-768,084,280.56-309,054,302.88

Finding the Fourth Proportional to 556,568,815.20, 768,084,280.56 and 309,054,302.88

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Solution

The fourth proportional to 556,568,815.20, 768,084,280.56 and 309,054,302.88 is: 426,505,663.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,568,815.20 : 768,084,280.56 = 309,054,302.88 : x
  2. Step 2: Convert to fraction form
    556,568,815.20/768,084,280.56 = 309,054,302.88/x
  3. Step 3: Cross multiply
    556,568,815.20x = 768,084,280.56 × 309,054,302.88
  4. Step 4: Simplify right side
    556,568,815.20x = 237,379,751,881,557,120
  5. Step 5: Solve for x
    x = 237,379,751,881,557,120/556,568,815.20
  6. Step 6: Final answer
    x = 426,505,663.63

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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.