Finding the Fourth Proportional to 30,611,248.68, 42,243,523.68 and 16,860,212.81
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Solution
The fourth proportional to 30,611,248.68, 42,243,523.68 and 16,860,212.81 is: 23,267,093.95
Step by Step Solution
- Step 1: Write the proportion equation
30,611,248.68 : 42,243,523.68 = 16,860,212.81 : x - Step 2: Convert to fraction form
30,611,248.68/42,243,523.68 = 16,860,212.81/x - Step 3: Cross multiply
30,611,248.68x = 42,243,523.68 × 16,860,212.81 - Step 4: Simplify right side
30,611,248.68x = 712,234,799,089,074.25 - Step 5: Solve for x
x = 712,234,799,089,074.25/30,611,248.68 - Step 6: Final answer
x = 23,267,093.95
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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.