Finding the Third Proportional to 7,139,779 and 15,696,731
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Solution
The third proportional to 7,139,779 and 15,696,731 is: 34,509,102.32
Step by Step Solution
- Step 1: Write the proportion equation
7,139,779 : 15,696,731 = 15,696,731 : x - Step 2: Convert to fraction form
7,139,779/15,696,731 = 15,696,731/x - Step 3: Cross multiply
7,139,779x = 15,696,731 × 15,696,731 - Step 4: Simplify right side
7,139,779x = 246,387,364,086,361 - Step 5: Solve for x
x = 246,387,364,086,361/7,139,779 - Step 6: Final answer
x = 34,509,102.32
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Why These Related Problems?
These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.