Finding the Fourth Proportional to 30,611,157.18, 42,243,440.04 and 16,672,566.84
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Solution
The fourth proportional to 30,611,157.18, 42,243,440.04 and 16,672,566.84 is: 23,008,165.73
Step by Step Solution
- Step 1: Write the proportion equation
30,611,157.18 : 42,243,440.04 = 16,672,566.84 : x - Step 2: Convert to fraction form
30,611,157.18/42,243,440.04 = 16,672,566.84/x - Step 3: Cross multiply
30,611,157.18x = 42,243,440.04 × 16,672,566.84 - Step 4: Simplify right side
30,611,157.18x = 704,306,577,618,432.25 - Step 5: Solve for x
x = 704,306,577,618,432.25/30,611,157.18 - Step 6: Final answer
x = 23,008,165.73
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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.