Home / 6,466,195-9,699,681.30-1,978,509.88

Finding the Fourth Proportional to 6,466,195, 9,699,681.30 and 1,978,509.88

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Solution

The fourth proportional to 6,466,195, 9,699,681.30 and 1,978,509.88 is: 2,967,883.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,466,195 : 9,699,681.30 = 1,978,509.88 : x
  2. Step 2: Convert to fraction form
    6,466,195/9,699,681.30 = 1,978,509.88/x
  3. Step 3: Cross multiply
    6,466,195x = 9,699,681.30 × 1,978,509.88
  4. Step 4: Simplify right side
    6,466,195x = 19,190,915,284,901.25
  5. Step 5: Solve for x
    x = 19,190,915,284,901.25/6,466,195
  6. Step 6: Final answer
    x = 2,967,883.78

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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.