Home / 3,992,666.80-5,989,000.20-3,319,508.20

Finding the Fourth Proportional to 3,992,666.80, 5,989,000.20 and 3,319,508.20

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Solution

The fourth proportional to 3,992,666.80, 5,989,000.20 and 3,319,508.20 is: 4,979,262.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992,666.80 : 5,989,000.20 = 3,319,508.20 : x
  2. Step 2: Convert to fraction form
    3,992,666.80/5,989,000.20 = 3,319,508.20/x
  3. Step 3: Cross multiply
    3,992,666.80x = 5,989,000.20 × 3,319,508.20
  4. Step 4: Simplify right side
    3,992,666.80x = 19,880,535,273,701.64
  5. Step 5: Solve for x
    x = 19,880,535,273,701.64/3,992,666.80
  6. Step 6: Final answer
    x = 4,979,262.30

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Similar ratio
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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.