Finding the Third Proportional to 418,379,480 and 912,090,828
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Solution
The third proportional to 418,379,480 and 912,090,828 is: 1,988,409,370.65
Step by Step Solution
- Step 1: Write the proportion equation
418,379,480 : 912,090,828 = 912,090,828 : x - Step 2: Convert to fraction form
418,379,480/912,090,828 = 912,090,828/x - Step 3: Cross multiply
418,379,480x = 912,090,828 × 912,090,828 - Step 4: Simplify right side
418,379,480x = 831,909,678,521,725,568 - Step 5: Solve for x
x = 831,909,678,521,725,568/418,379,480 - Step 6: Final answer
x = 1,988,409,370.65
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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.