Finding the Fourth Proportional to 98,992,218.96, 136,625,680.80 and 57,739,110.12
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Solution
The fourth proportional to 98,992,218.96, 136,625,680.80 and 57,739,110.12 is: 79,689,548.45
Step by Step Solution
- Step 1: Write the proportion equation
98,992,218.96 : 136,625,680.80 = 57,739,110.12 : x - Step 2: Convert to fraction form
98,992,218.96/136,625,680.80 = 57,739,110.12/x - Step 3: Cross multiply
98,992,218.96x = 136,625,680.80 × 57,739,110.12 - Step 4: Simplify right side
98,992,218.96x = 7,888,645,228,931,170 - Step 5: Solve for x
x = 7,888,645,228,931,170/98,992,218.96 - Step 6: Final answer
x = 79,689,548.45
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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.