Home / 21,069,570.60-29,078,367.12-11,902,803.84

Finding the Fourth Proportional to 21,069,570.60, 29,078,367.12 and 11,902,803.84

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Solution

The fourth proportional to 21,069,570.60, 29,078,367.12 and 11,902,803.84 is: 16,427,202.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069,570.60 : 29,078,367.12 = 11,902,803.84 : x
  2. Step 2: Convert to fraction form
    21,069,570.60/29,078,367.12 = 11,902,803.84/x
  3. Step 3: Cross multiply
    21,069,570.60x = 29,078,367.12 × 11,902,803.84
  4. Step 4: Simplify right side
    21,069,570.60x = 346,114,099,816,865.75
  5. Step 5: Solve for x
    x = 346,114,099,816,865.75/21,069,570.60
  6. Step 6: Final answer
    x = 16,427,202.36

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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.