Finding the Fourth Proportional to 18,209,428.24, 27,315,980.86 and 5,912,877.40
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Solution
The fourth proportional to 18,209,428.24, 27,315,980.86 and 5,912,877.40 is: 8,869,913.09
Step by Step Solution
- Step 1: Write the proportion equation
18,209,428.24 : 27,315,980.86 = 5,912,877.40 : x - Step 2: Convert to fraction form
18,209,428.24/27,315,980.86 = 5,912,877.40/x - Step 3: Cross multiply
18,209,428.24x = 27,315,980.86 × 5,912,877.40 - Step 4: Simplify right side
18,209,428.24x = 161,516,045,885,926.56 - Step 5: Solve for x
x = 161,516,045,885,926.56/18,209,428.24 - Step 6: Final answer
x = 8,869,913.09
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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.