Home / 355,780,971.32-490,982,754.70-204,990,289.48

Finding the Fourth Proportional to 355,780,971.32, 490,982,754.70 and 204,990,289.48

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Solution

The fourth proportional to 355,780,971.32, 490,982,754.70 and 204,990,289.48 is: 282,889,488.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,780,971.32 : 490,982,754.70 = 204,990,289.48 : x
  2. Step 2: Convert to fraction form
    355,780,971.32/490,982,754.70 = 204,990,289.48/x
  3. Step 3: Cross multiply
    355,780,971.32x = 490,982,754.70 × 204,990,289.48
  4. Step 4: Simplify right side
    355,780,971.32x = 100,646,697,015,640,816
  5. Step 5: Solve for x
    x = 100,646,697,015,640,816/355,780,971.32
  6. Step 6: Final answer
    x = 282,889,488.56

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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.