Finding the Fourth Proportional to 15,177,316.48, 20,944,759.41 and 8,207,993.88
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Solution
The fourth proportional to 15,177,316.48, 20,944,759.41 and 8,207,993.88 is: 11,327,065.45
Step by Step Solution
- Step 1: Write the proportion equation
15,177,316.48 : 20,944,759.41 = 8,207,993.88 : x - Step 2: Convert to fraction form
15,177,316.48/20,944,759.41 = 8,207,993.88/x - Step 3: Cross multiply
15,177,316.48x = 20,944,759.41 × 8,207,993.88 - Step 4: Simplify right side
15,177,316.48x = 171,914,457,055,352.41 - Step 5: Solve for x
x = 171,914,457,055,352.41/15,177,316.48 - Step 6: Final answer
x = 11,327,065.45
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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.