Home / 21,643,911.96-29,868,627.31-11,720,811.77

Finding the Fourth Proportional to 21,643,911.96, 29,868,627.31 and 11,720,811.77

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Solution

The fourth proportional to 21,643,911.96, 29,868,627.31 and 11,720,811.77 is: 16,174,735.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,643,911.96 : 29,868,627.31 = 11,720,811.77 : x
  2. Step 2: Convert to fraction form
    21,643,911.96/29,868,627.31 = 11,720,811.77/x
  3. Step 3: Cross multiply
    21,643,911.96x = 29,868,627.31 × 11,720,811.77
  4. Step 4: Simplify right side
    21,643,911.96x = 350,084,558,543,442.44
  5. Step 5: Solve for x
    x = 350,084,558,543,442.44/21,643,911.96
  6. Step 6: Final answer
    x = 16,174,735.84

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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.