Home / 6,413,443.60-9,620,165.40-3,978,000.40

Finding the Fourth Proportional to 6,413,443.60, 9,620,165.40 and 3,978,000.40

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Solution

The fourth proportional to 6,413,443.60, 9,620,165.40 and 3,978,000.40 is: 5,967,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,413,443.60 : 9,620,165.40 = 3,978,000.40 : x
  2. Step 2: Convert to fraction form
    6,413,443.60/9,620,165.40 = 3,978,000.40/x
  3. Step 3: Cross multiply
    6,413,443.60x = 9,620,165.40 × 3,978,000.40
  4. Step 4: Simplify right side
    6,413,443.60x = 38,269,021,809,266.16
  5. Step 5: Solve for x
    x = 38,269,021,809,266.16/6,413,443.60
  6. Step 6: Final answer
    x = 5,967,000.60

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1.5x scale

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.