Home / 21,509,534.96-29,682,784.51-11,720,059.59

Finding the Fourth Proportional to 21,509,534.96, 29,682,784.51 and 11,720,059.59

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Solution

The fourth proportional to 21,509,534.96, 29,682,784.51 and 11,720,059.59 is: 16,173,478.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,509,534.96 : 29,682,784.51 = 11,720,059.59 : x
  2. Step 2: Convert to fraction form
    21,509,534.96/29,682,784.51 = 11,720,059.59/x
  3. Step 3: Cross multiply
    21,509,534.96x = 29,682,784.51 × 11,720,059.59
  4. Step 4: Simplify right side
    21,509,534.96x = 347,884,003,254,328.94
  5. Step 5: Solve for x
    x = 347,884,003,254,328.94/21,509,534.96
  6. Step 6: Final answer
    x = 16,173,478.59

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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.