Home / 278,220,007.71-417,360,279.65-103,322,525.54

Finding the Fourth Proportional to 278,220,007.71, 417,360,279.65 and 103,322,525.54

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Solution

The fourth proportional to 278,220,007.71, 417,360,279.65 and 103,322,525.54 is: 154,995,028.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,220,007.71 : 417,360,279.65 = 103,322,525.54 : x
  2. Step 2: Convert to fraction form
    278,220,007.71/417,360,279.65 = 103,322,525.54/x
  3. Step 3: Cross multiply
    278,220,007.71x = 417,360,279.65 × 103,322,525.54
  4. Step 4: Simplify right side
    278,220,007.71x = 43,122,718,150,915,248
  5. Step 5: Solve for x
    x = 43,122,718,150,915,248/278,220,007.71
  6. Step 6: Final answer
    x = 154,995,028.96

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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.