Finding the Third Proportional to 3,155,451 and 6,911,553
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Solution
The third proportional to 3,155,451 and 6,911,553 is: 15,138,743.99
Step by Step Solution
- Step 1: Write the proportion equation
3,155,451 : 6,911,553 = 6,911,553 : x - Step 2: Convert to fraction form
3,155,451/6,911,553 = 6,911,553/x - Step 3: Cross multiply
3,155,451x = 6,911,553 × 6,911,553 - Step 4: Simplify right side
3,155,451x = 47,769,564,871,809 - Step 5: Solve for x
x = 47,769,564,871,809/3,155,451 - Step 6: Final answer
x = 15,138,743.99
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Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.