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Finding the Third Proportional to 912,189,156 and 1,991,582,937

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Solution

The third proportional to 912,189,156 and 1,991,582,937 is: 4,348,223,796.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,189,156 : 1,991,582,937 = 1,991,582,937 : x
  2. Step 2: Convert to fraction form
    912,189,156/1,991,582,937 = 1,991,582,937/x
  3. Step 3: Cross multiply
    912,189,156x = 1,991,582,937 × 1,991,582,937
  4. Step 4: Simplify right side
    912,189,156x = 3,966,402,594,949,545,984
  5. Step 5: Solve for x
    x = 3,966,402,594,949,545,984/912,189,156
  6. Step 6: Final answer
    x = 4,348,223,796.41

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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.