Finding the Fourth Proportional to 21,111,312.24, 29,133,489.24 and 11,453,312.88
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Solution
The fourth proportional to 21,111,312.24, 29,133,489.24 and 11,453,312.88 is: 15,805,505.78
Step by Step Solution
- Step 1: Write the proportion equation
21,111,312.24 : 29,133,489.24 = 11,453,312.88 : x - Step 2: Convert to fraction form
21,111,312.24/29,133,489.24 = 11,453,312.88/x - Step 3: Cross multiply
21,111,312.24x = 29,133,489.24 × 11,453,312.88 - Step 4: Simplify right side
21,111,312.24x = 333,674,967,551,833.44 - Step 5: Solve for x
x = 333,674,967,551,833.44/21,111,312.24 - Step 6: Final answer
x = 15,805,505.78
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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.