Home / 5,381,620.80-8,072,431.20-2,189,038.20

Finding the Fourth Proportional to 5,381,620.80, 8,072,431.20 and 2,189,038.20

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Solution

The fourth proportional to 5,381,620.80, 8,072,431.20 and 2,189,038.20 is: 3,283,557.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381,620.80 : 8,072,431.20 = 2,189,038.20 : x
  2. Step 2: Convert to fraction form
    5,381,620.80/8,072,431.20 = 2,189,038.20/x
  3. Step 3: Cross multiply
    5,381,620.80x = 8,072,431.20 × 2,189,038.20
  4. Step 4: Simplify right side
    5,381,620.80x = 17,670,860,263,671.84
  5. Step 5: Solve for x
    x = 17,670,860,263,671.84/5,381,620.80
  6. Step 6: Final answer
    x = 3,283,557.30

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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.