Home / 390,522,901,900.47-585,859,790,270.95-148,481,192,759.55

Finding the Fourth Proportional to 390,522,901,900.47, 585,859,790,270.95 and 148,481,192,759.55

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Solution

The fourth proportional to 390,522,901,900.47, 585,859,790,270.95 and 148,481,192,759.55 is: 222,750,471,293.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,522,901,900.47 : 585,859,790,270.95 = 148,481,192,759.55 : x
  2. Step 2: Convert to fraction form
    390,522,901,900.47/585,859,790,270.95 = 148,481,192,759.55/x
  3. Step 3: Cross multiply
    390,522,901,900.47x = 585,859,790,270.95 × 148,481,192,759.55
  4. Step 4: Simplify right side
    390,522,901,900.47x = 86,989,160,449,290,453,123,072
  5. Step 5: Solve for x
    x = 86,989,160,449,290,453,123,072/390,522,901,900.47
  6. Step 6: Final answer
    x = 222,750,471,293.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.