Finding the Fourth Proportional to 98,770,161.90, 136,311,193.62 and 54,730,974.84
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Solution
The fourth proportional to 98,770,161.90, 136,311,193.62 and 54,730,974.84 is: 75,533,383.41
Step by Step Solution
- Step 1: Write the proportion equation
98,770,161.90 : 136,311,193.62 = 54,730,974.84 : x - Step 2: Convert to fraction form
98,770,161.90/136,311,193.62 = 54,730,974.84/x - Step 3: Cross multiply
98,770,161.90x = 136,311,193.62 × 54,730,974.84 - Step 4: Simplify right side
98,770,161.90x = 7,460,444,508,426,589 - Step 5: Solve for x
x = 7,460,444,508,426,589/98,770,161.90 - Step 6: Final answer
x = 75,533,383.41
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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.