Home / 388,372,131.84-536,081,265.72-309,132,544.14

Finding the Fourth Proportional to 388,372,131.84, 536,081,265.72 and 309,132,544.14

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Solution

The fourth proportional to 388,372,131.84, 536,081,265.72 and 309,132,544.14 is: 426,704,575.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,372,131.84 : 536,081,265.72 = 309,132,544.14 : x
  2. Step 2: Convert to fraction form
    388,372,131.84/536,081,265.72 = 309,132,544.14/x
  3. Step 3: Cross multiply
    388,372,131.84x = 536,081,265.72 × 309,132,544.14
  4. Step 4: Simplify right side
    388,372,131.84x = 165,720,165,537,814,976
  5. Step 5: Solve for x
    x = 165,720,165,537,814,976/388,372,131.84
  6. Step 6: Final answer
    x = 426,704,575.20

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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.