Home / 5,376,991.20-8,065,486.80-2,689,605.60

Finding the Fourth Proportional to 5,376,991.20, 8,065,486.80 and 2,689,605.60

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Solution

The fourth proportional to 5,376,991.20, 8,065,486.80 and 2,689,605.60 is: 4,034,408.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376,991.20 : 8,065,486.80 = 2,689,605.60 : x
  2. Step 2: Convert to fraction form
    5,376,991.20/8,065,486.80 = 2,689,605.60/x
  3. Step 3: Cross multiply
    5,376,991.20x = 8,065,486.80 × 2,689,605.60
  4. Step 4: Simplify right side
    5,376,991.20x = 21,692,978,464,006.08
  5. Step 5: Solve for x
    x = 21,692,978,464,006.08/5,376,991.20
  6. Step 6: Final answer
    x = 4,034,408.40

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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.