Home / 556,652,560.09-768,159,487.83-309,149,857.57

Finding the Fourth Proportional to 556,652,560.09, 768,159,487.83 and 309,149,857.57

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Solution

The fourth proportional to 556,652,560.09, 768,159,487.83 and 309,149,857.57 is: 426,615,115.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,652,560.09 : 768,159,487.83 = 309,149,857.57 : x
  2. Step 2: Convert to fraction form
    556,652,560.09/768,159,487.83 = 309,149,857.57/x
  3. Step 3: Cross multiply
    556,652,560.09x = 768,159,487.83 × 309,149,857.57
  4. Step 4: Simplify right side
    556,652,560.09x = 237,476,396,253,688,672
  5. Step 5: Solve for x
    x = 237,476,396,253,688,672/556,652,560.09
  6. Step 6: Final answer
    x = 426,615,115.57

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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.