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Finding the Third Proportional to 1,889,256,439.88 and 4,099,648,405.50

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Solution

The third proportional to 1,889,256,439.88 and 4,099,648,405.50 is: 8,896,154,430.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889,256,439.88 : 4,099,648,405.50 = 4,099,648,405.50 : x
  2. Step 2: Convert to fraction form
    1,889,256,439.88/4,099,648,405.50 = 4,099,648,405.50/x
  3. Step 3: Cross multiply
    1,889,256,439.88x = 4,099,648,405.50 × 4,099,648,405.50
  4. Step 4: Simplify right side
    1,889,256,439.88x = 16,807,117,048,718,692,352
  5. Step 5: Solve for x
    x = 16,807,117,048,718,692,352/1,889,256,439.88
  6. Step 6: Final answer
    x = 8,896,154,430.91

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.