Home / 20,820,092.58-28,732,625.10-11,527,661.88

Finding the Fourth Proportional to 20,820,092.58, 28,732,625.10 and 11,527,661.88

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Solution

The fourth proportional to 20,820,092.58, 28,732,625.10 and 11,527,661.88 is: 15,908,670.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,820,092.58 : 28,732,625.10 = 11,527,661.88 : x
  2. Step 2: Convert to fraction form
    20,820,092.58/28,732,625.10 = 11,527,661.88/x
  3. Step 3: Cross multiply
    20,820,092.58x = 28,732,625.10 × 11,527,661.88
  4. Step 4: Simplify right side
    20,820,092.58x = 331,219,987,077,601.25
  5. Step 5: Solve for x
    x = 331,219,987,077,601.25/20,820,092.58
  6. Step 6: Final answer
    x = 15,908,670.23

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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.