Home / 1,278,300,673.65-1,765,273,260.34-1,208,659,648.56

Finding the Fourth Proportional to 1,278,300,673.65, 1,765,273,260.34 and 1,208,659,648.56

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Solution

The fourth proportional to 1,278,300,673.65, 1,765,273,260.34 and 1,208,659,648.56 is: 1,669,102,271.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,300,673.65 : 1,765,273,260.34 = 1,208,659,648.56 : x
  2. Step 2: Convert to fraction form
    1,278,300,673.65/1,765,273,260.34 = 1,208,659,648.56/x
  3. Step 3: Cross multiply
    1,278,300,673.65x = 1,765,273,260.34 × 1,208,659,648.56
  4. Step 4: Simplify right side
    1,278,300,673.65x = 2,133,614,558,449,828,608
  5. Step 5: Solve for x
    x = 2,133,614,558,449,828,608/1,278,300,673.65
  6. Step 6: Final answer
    x = 1,669,102,271.82

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1.5x scale

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.