Home / 2,989,930.60-4,484,895.90-2,186,864.20

Finding the Fourth Proportional to 2,989,930.60, 4,484,895.90 and 2,186,864.20

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Solution

The fourth proportional to 2,989,930.60, 4,484,895.90 and 2,186,864.20 is: 3,280,296.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989,930.60 : 4,484,895.90 = 2,186,864.20 : x
  2. Step 2: Convert to fraction form
    2,989,930.60/4,484,895.90 = 2,186,864.20/x
  3. Step 3: Cross multiply
    2,989,930.60x = 4,484,895.90 × 2,186,864.20
  4. Step 4: Simplify right side
    2,989,930.60x = 9,807,858,284,436.78
  5. Step 5: Solve for x
    x = 9,807,858,284,436.78/2,989,930.60
  6. Step 6: Final answer
    x = 3,280,296.30

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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.