Home / 1,278,300,667.55-1,765,273,251.93-1,208,659,642.46

Finding the Fourth Proportional to 1,278,300,667.55, 1,765,273,251.93 and 1,208,659,642.46

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Solution

The fourth proportional to 1,278,300,667.55, 1,765,273,251.93 and 1,208,659,642.46 is: 1,669,102,263.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,300,667.55 : 1,765,273,251.93 = 1,208,659,642.46 : x
  2. Step 2: Convert to fraction form
    1,278,300,667.55/1,765,273,251.93 = 1,208,659,642.46/x
  3. Step 3: Cross multiply
    1,278,300,667.55x = 1,765,273,251.93 × 1,208,659,642.46
  4. Step 4: Simplify right side
    1,278,300,667.55x = 2,133,614,537,526,328,832
  5. Step 5: Solve for x
    x = 2,133,614,537,526,328,832/1,278,300,667.55
  6. Step 6: Final answer
    x = 1,669,102,263.41

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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.