Home / 21,153,952.96-29,118,093.21-18,534,280.98

Finding the Fourth Proportional to 21,153,952.96, 29,118,093.21 and 18,534,280.98

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Solution

The fourth proportional to 21,153,952.96, 29,118,093.21 and 18,534,280.98 is: 25,512,154.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,153,952.96 : 29,118,093.21 = 18,534,280.98 : x
  2. Step 2: Convert to fraction form
    21,153,952.96/29,118,093.21 = 18,534,280.98/x
  3. Step 3: Cross multiply
    21,153,952.96x = 29,118,093.21 × 18,534,280.98
  4. Step 4: Simplify right side
    21,153,952.96x = 539,682,921,213,026.06
  5. Step 5: Solve for x
    x = 539,682,921,213,026.06/21,153,952.96
  6. Step 6: Final answer
    x = 25,512,154.73

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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.