Finding the Fourth Proportional to 80,827,712.70, 121,241,569.05 and 39,906,755.70
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Solution
The fourth proportional to 80,827,712.70, 121,241,569.05 and 39,906,755.70 is: 59,860,133.55
Step by Step Solution
- Step 1: Write the proportion equation
80,827,712.70 : 121,241,569.05 = 39,906,755.70 : x - Step 2: Convert to fraction form
80,827,712.70/121,241,569.05 = 39,906,755.70/x - Step 3: Cross multiply
80,827,712.70x = 121,241,569.05 × 39,906,755.70 - Step 4: Simplify right side
80,827,712.70x = 4,838,357,676,763,031 - Step 5: Solve for x
x = 4,838,357,676,763,031/80,827,712.70 - Step 6: Final answer
x = 59,860,133.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.