Finding the Fourth Proportional to 173,478,158.82, 239,397,625.80 and 99,137,868.12
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Solution
The fourth proportional to 173,478,158.82, 239,397,625.80 and 99,137,868.12 is: 136,808,981.70
Step by Step Solution
- Step 1: Write the proportion equation
173,478,158.82 : 239,397,625.80 = 99,137,868.12 : x - Step 2: Convert to fraction form
173,478,158.82/239,397,625.80 = 99,137,868.12/x - Step 3: Cross multiply
173,478,158.82x = 239,397,625.80 × 99,137,868.12 - Step 4: Simplify right side
173,478,158.82x = 23,733,370,254,801,512 - Step 5: Solve for x
x = 23,733,370,254,801,512/173,478,158.82 - Step 6: Final answer
x = 136,808,981.70
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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.