Finding the Third Proportional to 7,620,878 and 16,438,324
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Solution
The third proportional to 7,620,878 and 16,438,324 is: 35,457,659.33
Step by Step Solution
- Step 1: Write the proportion equation
7,620,878 : 16,438,324 = 16,438,324 : x - Step 2: Convert to fraction form
7,620,878/16,438,324 = 16,438,324/x - Step 3: Cross multiply
7,620,878x = 16,438,324 × 16,438,324 - Step 4: Simplify right side
7,620,878x = 270,218,495,928,976 - Step 5: Solve for x
x = 270,218,495,928,976/7,620,878 - Step 6: Final answer
x = 35,457,659.33
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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.