Home / 393,757,230.97-543,390,678.66-217,549,282.60

Finding the Fourth Proportional to 393,757,230.97, 543,390,678.66 and 217,549,282.60

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Solution

The fourth proportional to 393,757,230.97, 543,390,678.66 and 217,549,282.60 is: 300,221,159.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,757,230.97 : 543,390,678.66 = 217,549,282.60 : x
  2. Step 2: Convert to fraction form
    393,757,230.97/543,390,678.66 = 217,549,282.60/x
  3. Step 3: Cross multiply
    393,757,230.97x = 543,390,678.66 × 217,549,282.60
  4. Step 4: Simplify right side
    393,757,230.97x = 118,214,252,314,010,112
  5. Step 5: Solve for x
    x = 118,214,252,314,010,112/393,757,230.97
  6. Step 6: Final answer
    x = 300,221,159.17

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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.