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Finding the Third Proportional to 991,714,276 and 2,161,992,920

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Solution

The third proportional to 991,714,276 and 2,161,992,920 is: 4,713,266,209.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,714,276 : 2,161,992,920 = 2,161,992,920 : x
  2. Step 2: Convert to fraction form
    991,714,276/2,161,992,920 = 2,161,992,920/x
  3. Step 3: Cross multiply
    991,714,276x = 2,161,992,920 × 2,161,992,920
  4. Step 4: Simplify right side
    991,714,276x = 4,674,213,386,130,126,848
  5. Step 5: Solve for x
    x = 4,674,213,386,130,126,848/991,714,276
  6. Step 6: Final answer
    x = 4,713,266,209.08

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.