Finding the Fourth Proportional to 19,189,397.88, 26,473,456.80 and 13,391,544.24
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Solution
The fourth proportional to 19,189,397.88, 26,473,456.80 and 13,391,544.24 is: 18,474,809.38
Step by Step Solution
- Step 1: Write the proportion equation
19,189,397.88 : 26,473,456.80 = 13,391,544.24 : x - Step 2: Convert to fraction form
19,189,397.88/26,473,456.80 = 13,391,544.24/x - Step 3: Cross multiply
19,189,397.88x = 26,473,456.80 × 13,391,544.24 - Step 4: Simplify right side
19,189,397.88x = 354,520,467,922,928.88 - Step 5: Solve for x
x = 354,520,467,922,928.88/19,189,397.88 - Step 6: Final answer
x = 18,474,809.38
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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.