Home / 21,048,692.54-29,047,195.62-11,390,900.54

Finding the Fourth Proportional to 21,048,692.54, 29,047,195.62 and 11,390,900.54

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Solution

The fourth proportional to 21,048,692.54, 29,047,195.62 and 11,390,900.54 is: 15,719,442.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048,692.54 : 29,047,195.62 = 11,390,900.54 : x
  2. Step 2: Convert to fraction form
    21,048,692.54/29,047,195.62 = 11,390,900.54/x
  3. Step 3: Cross multiply
    21,048,692.54x = 29,047,195.62 × 11,390,900.54
  4. Step 4: Simplify right side
    21,048,692.54x = 330,873,716,128,107.69
  5. Step 5: Solve for x
    x = 330,873,716,128,107.69/21,048,692.54
  6. Step 6: Final answer
    x = 15,719,442.70

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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.