Home / 21,004,708.80-31,444,077.60-19,758,993.60

Finding the Fourth Proportional to 21,004,708.80, 31,444,077.60 and 19,758,993.60

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Solution

The fourth proportional to 21,004,708.80, 31,444,077.60 and 19,758,993.60 is: 29,579,240.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,708.80 : 31,444,077.60 = 19,758,993.60 : x
  2. Step 2: Convert to fraction form
    21,004,708.80/31,444,077.60 = 19,758,993.60/x
  3. Step 3: Cross multiply
    21,004,708.80x = 31,444,077.60 × 19,758,993.60
  4. Step 4: Simplify right side
    21,004,708.80x = 621,303,328,056,303.38
  5. Step 5: Solve for x
    x = 621,303,328,056,303.38/21,004,708.80
  6. Step 6: Final answer
    x = 29,579,240.25

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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.