Home / 4,679,986.60-7,019,979.90-2,788,863.40

Finding the Fourth Proportional to 4,679,986.60, 7,019,979.90 and 2,788,863.40

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Solution

The fourth proportional to 4,679,986.60, 7,019,979.90 and 2,788,863.40 is: 4,183,295.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679,986.60 : 7,019,979.90 = 2,788,863.40 : x
  2. Step 2: Convert to fraction form
    4,679,986.60/7,019,979.90 = 2,788,863.40/x
  3. Step 3: Cross multiply
    4,679,986.60x = 7,019,979.90 × 2,788,863.40
  4. Step 4: Simplify right side
    4,679,986.60x = 19,577,765,011,845.66
  5. Step 5: Solve for x
    x = 19,577,765,011,845.66/4,679,986.60
  6. Step 6: Final answer
    x = 4,183,295.10

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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.