Finding the Third Proportional to 421,138,645 and 908,865,202
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Solution
The third proportional to 421,138,645 and 908,865,202 is: 1,961,434,708.53
Step by Step Solution
- Step 1: Write the proportion equation
421,138,645 : 908,865,202 = 908,865,202 : x - Step 2: Convert to fraction form
421,138,645/908,865,202 = 908,865,202/x - Step 3: Cross multiply
421,138,645x = 908,865,202 × 908,865,202 - Step 4: Simplify right side
421,138,645x = 826,035,955,406,500,864 - Step 5: Solve for x
x = 826,035,955,406,500,864/421,138,645 - Step 6: Final answer
x = 1,961,434,708.53
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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.