Home / 20,767,692.80-31,151,539.20-11,809,740.80

Finding the Fourth Proportional to 20,767,692.80, 31,151,539.20 and 11,809,740.80

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Solution

The fourth proportional to 20,767,692.80, 31,151,539.20 and 11,809,740.80 is: 17,714,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,767,692.80 : 31,151,539.20 = 11,809,740.80 : x
  2. Step 2: Convert to fraction form
    20,767,692.80/31,151,539.20 = 11,809,740.80/x
  3. Step 3: Cross multiply
    20,767,692.80x = 31,151,539.20 × 11,809,740.80
  4. Step 4: Simplify right side
    20,767,692.80x = 367,891,603,473,039.38
  5. Step 5: Solve for x
    x = 367,891,603,473,039.38/20,767,692.80
  6. Step 6: Final answer
    x = 17,714,611.20

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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.