Finding the Fourth Proportional to 15,703,368.84, 21,687,170.24 and 13,991,571.14
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Solution
The fourth proportional to 15,703,368.84, 21,687,170.24 and 13,991,571.14 is: 19,323,088.46
Step by Step Solution
- Step 1: Write the proportion equation
15,703,368.84 : 21,687,170.24 = 13,991,571.14 : x - Step 2: Convert to fraction form
15,703,368.84/21,687,170.24 = 13,991,571.14/x - Step 3: Cross multiply
15,703,368.84x = 21,687,170.24 × 13,991,571.14 - Step 4: Simplify right side
15,703,368.84x = 303,437,585,164,793.94 - Step 5: Solve for x
x = 303,437,585,164,793.94/15,703,368.84 - Step 6: Final answer
x = 19,323,088.46
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1.5x scale
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.