Home / 2,807,889,470.20-4,211,834,205.30-1,991,596,094.20

Finding the Fourth Proportional to 2,807,889,470.20, 4,211,834,205.30 and 1,991,596,094.20

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Solution

The fourth proportional to 2,807,889,470.20, 4,211,834,205.30 and 1,991,596,094.20 is: 2,987,394,141.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807,889,470.20 : 4,211,834,205.30 = 1,991,596,094.20 : x
  2. Step 2: Convert to fraction form
    2,807,889,470.20/4,211,834,205.30 = 1,991,596,094.20/x
  3. Step 3: Cross multiply
    2,807,889,470.20x = 4,211,834,205.30 × 1,991,596,094.20
  4. Step 4: Simplify right side
    2,807,889,470.20x = 8,388,272,552,693,441,536
  5. Step 5: Solve for x
    x = 8,388,272,552,693,441,536/2,807,889,470.20
  6. Step 6: Final answer
    x = 2,987,394,141.30

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Double scale
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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.