Finding the Fourth Proportional to 98,885,703.84, 136,452,438.96 and 57,083,236.44
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Solution
The fourth proportional to 98,885,703.84, 136,452,438.96 and 57,083,236.44 is: 78,769,190.42
Step by Step Solution
- Step 1: Write the proportion equation
98,885,703.84 : 136,452,438.96 = 57,083,236.44 : x - Step 2: Convert to fraction form
98,885,703.84/136,452,438.96 = 57,083,236.44/x - Step 3: Cross multiply
98,885,703.84x = 136,452,438.96 × 57,083,236.44 - Step 4: Simplify right side
98,885,703.84x = 7,789,146,835,968,348 - Step 5: Solve for x
x = 7,789,146,835,968,348/98,885,703.84 - Step 6: Final answer
x = 78,769,190.42
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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.