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Finding the Fourth Proportional to 556,652,888.08, 768,159,939.24 and 309,150,185.56

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Solution

The fourth proportional to 556,652,888.08, 768,159,939.24 and 309,150,185.56 is: 426,615,567.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,652,888.08 : 768,159,939.24 = 309,150,185.56 : x
  2. Step 2: Convert to fraction form
    556,652,888.08/768,159,939.24 = 309,150,185.56/x
  3. Step 3: Cross multiply
    556,652,888.08x = 768,159,939.24 × 309,150,185.56
  4. Step 4: Simplify right side
    556,652,888.08x = 237,476,787,753,883,936
  5. Step 5: Solve for x
    x = 237,476,787,753,883,936/556,652,888.08
  6. Step 6: Final answer
    x = 426,615,567.51

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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.