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Finding the Third Proportional to 309,976,279.17 and 669,263,048.02

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Solution

The third proportional to 309,976,279.17 and 669,263,048.02 is: 1,444,991,302.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,976,279.17 : 669,263,048.02 = 669,263,048.02 : x
  2. Step 2: Convert to fraction form
    309,976,279.17/669,263,048.02 = 669,263,048.02/x
  3. Step 3: Cross multiply
    309,976,279.17x = 669,263,048.02 × 669,263,048.02
  4. Step 4: Simplify right side
    309,976,279.17x = 447,913,027,439,158,080
  5. Step 5: Solve for x
    x = 447,913,027,439,158,080/309,976,279.17
  6. Step 6: Final answer
    x = 1,444,991,302.68

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.