Finding the Fourth Proportional to 15,486,207.54, 21,373,641.48 and 8,963,433.56
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Solution
The fourth proportional to 15,486,207.54, 21,373,641.48 and 8,963,433.56 is: 12,371,086.66
Step by Step Solution
- Step 1: Write the proportion equation
15,486,207.54 : 21,373,641.48 = 8,963,433.56 : x - Step 2: Convert to fraction form
15,486,207.54/21,373,641.48 = 8,963,433.56/x - Step 3: Cross multiply
15,486,207.54x = 21,373,641.48 × 8,963,433.56 - Step 4: Simplify right side
15,486,207.54x = 191,581,215,428,287.06 - Step 5: Solve for x
x = 191,581,215,428,287.06/15,486,207.54 - Step 6: Final answer
x = 12,371,086.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.