Home / 21,039,364.80-31,562,200.80-8,908,804.80

Finding the Fourth Proportional to 21,039,364.80, 31,562,200.80 and 8,908,804.80

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Solution

The fourth proportional to 21,039,364.80, 31,562,200.80 and 8,908,804.80 is: 13,364,542.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,039,364.80 : 31,562,200.80 = 8,908,804.80 : x
  2. Step 2: Convert to fraction form
    21,039,364.80/31,562,200.80 = 8,908,804.80/x
  3. Step 3: Cross multiply
    21,039,364.80x = 31,562,200.80 × 8,908,804.80
  4. Step 4: Simplify right side
    21,039,364.80x = 281,181,485,985,603.88
  5. Step 5: Solve for x
    x = 281,181,485,985,603.88/21,039,364.80
  6. Step 6: Final answer
    x = 13,364,542.54

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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.