Home / 21,069,985.06-29,078,939.82-11,903,218.30

Finding the Fourth Proportional to 21,069,985.06, 29,078,939.82 and 11,903,218.30

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Solution

The fourth proportional to 21,069,985.06, 29,078,939.82 and 11,903,218.30 is: 16,427,774.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069,985.06 : 29,078,939.82 = 11,903,218.30 : x
  2. Step 2: Convert to fraction form
    21,069,985.06/29,078,939.82 = 11,903,218.30/x
  3. Step 3: Cross multiply
    21,069,985.06x = 29,078,939.82 × 11,903,218.30
  4. Step 4: Simplify right side
    21,069,985.06x = 346,132,968,610,022.75
  5. Step 5: Solve for x
    x = 346,132,968,610,022.75/21,069,985.06
  6. Step 6: Final answer
    x = 16,427,774.75

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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.