Home / 20,830,816.88-28,745,259.15-11,537,836.04

Finding the Fourth Proportional to 20,830,816.88, 28,745,259.15 and 11,537,836.04

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Solution

The fourth proportional to 20,830,816.88, 28,745,259.15 and 11,537,836.04 is: 15,921,511.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,830,816.88 : 28,745,259.15 = 11,537,836.04 : x
  2. Step 2: Convert to fraction form
    20,830,816.88/28,745,259.15 = 11,537,836.04/x
  3. Step 3: Cross multiply
    20,830,816.88x = 28,745,259.15 × 11,537,836.04
  4. Step 4: Simplify right side
    20,830,816.88x = 331,658,087,000,009.75
  5. Step 5: Solve for x
    x = 331,658,087,000,009.75/20,830,816.88
  6. Step 6: Final answer
    x = 15,921,511.33

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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.