Home / 13,216,721.68-19,825,055.20-7,456,840.60

Finding the Fourth Proportional to 13,216,721.68, 19,825,055.20 and 7,456,840.60

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Solution

The fourth proportional to 13,216,721.68, 19,825,055.20 and 7,456,840.60 is: 11,185,245.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216,721.68 : 19,825,055.20 = 7,456,840.60 : x
  2. Step 2: Convert to fraction form
    13,216,721.68/19,825,055.20 = 7,456,840.60/x
  3. Step 3: Cross multiply
    13,216,721.68x = 19,825,055.20 × 7,456,840.60
  4. Step 4: Simplify right side
    13,216,721.68x = 147,832,276,512,601.09
  5. Step 5: Solve for x
    x = 147,832,276,512,601.09/13,216,721.68
  6. Step 6: Final answer
    x = 11,185,245.49

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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.