Finding the Fourth Proportional to 81,766,781.84, 122,635,610.02 and 32,578,512.74
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Solution
The fourth proportional to 81,766,781.84, 122,635,610.02 and 32,578,512.74 is: 48,861,966.85
Step by Step Solution
- Step 1: Write the proportion equation
81,766,781.84 : 122,635,610.02 = 32,578,512.74 : x - Step 2: Convert to fraction form
81,766,781.84/122,635,610.02 = 32,578,512.74/x - Step 3: Cross multiply
81,766,781.84x = 122,635,610.02 × 32,578,512.74 - Step 4: Simplify right side
81,766,781.84x = 3,995,285,783,414,241.50 - Step 5: Solve for x
x = 3,995,285,783,414,241.50/81,766,781.84 - Step 6: Final answer
x = 48,861,966.85
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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.