Home / 20,790,169.58-31,163,263.31-7,830,712.89

Finding the Fourth Proportional to 20,790,169.58, 31,163,263.31 and 7,830,712.89

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Solution

The fourth proportional to 20,790,169.58, 31,163,263.31 and 7,830,712.89 is: 11,737,786.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,790,169.58 : 31,163,263.31 = 7,830,712.89 : x
  2. Step 2: Convert to fraction form
    20,790,169.58/31,163,263.31 = 7,830,712.89/x
  3. Step 3: Cross multiply
    20,790,169.58x = 31,163,263.31 × 7,830,712.89
  4. Step 4: Simplify right side
    20,790,169.58x = 244,030,567,715,657.84
  5. Step 5: Solve for x
    x = 244,030,567,715,657.84/20,790,169.58
  6. Step 6: Final answer
    x = 11,737,786.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.