Finding the Fourth Proportional to 15,194,294.56, 20,968,116.84 and 8,318,774.80
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Solution
The fourth proportional to 15,194,294.56, 20,968,116.84 and 8,318,774.80 is: 11,479,903.94
Step by Step Solution
- Step 1: Write the proportion equation
15,194,294.56 : 20,968,116.84 = 8,318,774.80 : x - Step 2: Convert to fraction form
15,194,294.56/20,968,116.84 = 8,318,774.80/x - Step 3: Cross multiply
15,194,294.56x = 20,968,116.84 × 8,318,774.80 - Step 4: Simplify right side
15,194,294.56x = 174,429,041,972,047.62 - Step 5: Solve for x
x = 174,429,041,972,047.62/15,194,294.56 - Step 6: Final answer
x = 11,479,903.94
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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.