Home / 388,372,132.62-536,081,266.80-309,132,544.92

Finding the Fourth Proportional to 388,372,132.62, 536,081,266.80 and 309,132,544.92

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Solution

The fourth proportional to 388,372,132.62, 536,081,266.80 and 309,132,544.92 is: 426,704,576.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,372,132.62 : 536,081,266.80 = 309,132,544.92 : x
  2. Step 2: Convert to fraction form
    388,372,132.62/536,081,266.80 = 309,132,544.92/x
  3. Step 3: Cross multiply
    388,372,132.62x = 536,081,266.80 × 309,132,544.92
  4. Step 4: Simplify right side
    388,372,132.62x = 165,720,166,289,821,504
  5. Step 5: Solve for x
    x = 165,720,166,289,821,504/388,372,132.62
  6. Step 6: Final answer
    x = 426,704,576.28

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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.