Home / 668,761,950.78-1,002,745,527.75-254,269,112.45

Finding the Fourth Proportional to 668,761,950.78, 1,002,745,527.75 and 254,269,112.45

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Solution

The fourth proportional to 668,761,950.78, 1,002,745,527.75 and 254,269,112.45 is: 381,252,574.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,761,950.78 : 1,002,745,527.75 = 254,269,112.45 : x
  2. Step 2: Convert to fraction form
    668,761,950.78/1,002,745,527.75 = 254,269,112.45/x
  3. Step 3: Cross multiply
    668,761,950.78x = 1,002,745,527.75 × 254,269,112.45
  4. Step 4: Simplify right side
    668,761,950.78x = 254,967,215,349,185,600
  5. Step 5: Solve for x
    x = 254,967,215,349,185,600/668,761,950.78
  6. Step 6: Final answer
    x = 381,252,574.33

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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.