Home / 501,211,657.27-691,615,990.24-278,202,738.30

Finding the Fourth Proportional to 501,211,657.27, 691,615,990.24 and 278,202,738.30

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Solution

The fourth proportional to 501,211,657.27, 691,615,990.24 and 278,202,738.30 is: 383,888,641.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,211,657.27 : 691,615,990.24 = 278,202,738.30 : x
  2. Step 2: Convert to fraction form
    501,211,657.27/691,615,990.24 = 278,202,738.30/x
  3. Step 3: Cross multiply
    501,211,657.27x = 691,615,990.24 × 278,202,738.30
  4. Step 4: Simplify right side
    501,211,657.27x = 192,409,462,336,834,080
  5. Step 5: Solve for x
    x = 192,409,462,336,834,080/501,211,657.27
  6. Step 6: Final answer
    x = 383,888,641.75

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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.