Home / 393,159,743,999.70-589,739,615,999.55-382,139,783,423.70

Finding the Fourth Proportional to 393,159,743,999.70, 589,739,615,999.55 and 382,139,783,423.70

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Solution

The fourth proportional to 393,159,743,999.70, 589,739,615,999.55 and 382,139,783,423.70 is: 573,209,675,135.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,159,743,999.70 : 589,739,615,999.55 = 382,139,783,423.70 : x
  2. Step 2: Convert to fraction form
    393,159,743,999.70/589,739,615,999.55 = 382,139,783,423.70/x
  3. Step 3: Cross multiply
    393,159,743,999.70x = 589,739,615,999.55 × 382,139,783,423.70
  4. Step 4: Simplify right side
    393,159,743,999.70x = 225,362,969,134,444,062,965,760
  5. Step 5: Solve for x
    x = 225,362,969,134,444,062,965,760/393,159,743,999.70
  6. Step 6: Final answer
    x = 573,209,675,135.55

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1.5x scale

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.