Home / 20,670,075.94-30,984,271.32-12,999,202.92

Finding the Fourth Proportional to 20,670,075.94, 30,984,271.32 and 12,999,202.92

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Solution

The fourth proportional to 20,670,075.94, 30,984,271.32 and 12,999,202.92 is: 19,485,696.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,670,075.94 : 30,984,271.32 = 12,999,202.92 : x
  2. Step 2: Convert to fraction form
    20,670,075.94/30,984,271.32 = 12,999,202.92/x
  3. Step 3: Cross multiply
    20,670,075.94x = 30,984,271.32 × 12,999,202.92
  4. Step 4: Simplify right side
    20,670,075.94x = 402,770,830,217,016.25
  5. Step 5: Solve for x
    x = 402,770,830,217,016.25/20,670,075.94
  6. Step 6: Final answer
    x = 19,485,696.68

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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.