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Finding the Third Proportional to 18,866,328,840 and 40,382,928,432

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Solution

The third proportional to 18,866,328,840 and 40,382,928,432 is: 86,438,698,412.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,866,328,840 : 40,382,928,432 = 40,382,928,432 : x
  2. Step 2: Convert to fraction form
    18,866,328,840/40,382,928,432 = 40,382,928,432/x
  3. Step 3: Cross multiply
    18,866,328,840x = 40,382,928,432 × 40,382,928,432
  4. Step 4: Simplify right side
    18,866,328,840x = 1,630,780,908,744,033,959,936
  5. Step 5: Solve for x
    x = 1,630,780,908,744,033,959,936/18,866,328,840
  6. Step 6: Final answer
    x = 86,438,698,412.09

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.