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Finding the Third Proportional to 1,778,686,210 and 3,863,566,838

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Solution

The third proportional to 1,778,686,210 and 3,863,566,838 is: 8,392,232,777.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,686,210 : 3,863,566,838 = 3,863,566,838 : x
  2. Step 2: Convert to fraction form
    1,778,686,210/3,863,566,838 = 3,863,566,838/x
  3. Step 3: Cross multiply
    1,778,686,210x = 3,863,566,838 × 3,863,566,838
  4. Step 4: Simplify right side
    1,778,686,210x = 14,927,148,711,693,318,144
  5. Step 5: Solve for x
    x = 14,927,148,711,693,318,144/1,778,686,210
  6. Step 6: Final answer
    x = 8,392,232,777.08

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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.