Home / 20,705,771.58-28,575,243.18-11,413,320.69

Finding the Fourth Proportional to 20,705,771.58, 28,575,243.18 and 11,413,320.69

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Solution

The fourth proportional to 20,705,771.58, 28,575,243.18 and 11,413,320.69 is: 15,751,087.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,705,771.58 : 28,575,243.18 = 11,413,320.69 : x
  2. Step 2: Convert to fraction form
    20,705,771.58/28,575,243.18 = 11,413,320.69/x
  3. Step 3: Cross multiply
    20,705,771.58x = 28,575,243.18 × 11,413,320.69
  4. Step 4: Simplify right side
    20,705,771.58x = 326,138,414,208,075.38
  5. Step 5: Solve for x
    x = 326,138,414,208,075.38/20,705,771.58
  6. Step 6: Final answer
    x = 15,751,087.22

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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.