Finding the Fourth Proportional to 19,419,840.40, 29,105,402.70 and 10,299,427.12
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Solution
The fourth proportional to 19,419,840.40, 29,105,402.70 and 10,299,427.12 is: 15,436,222.32
Step by Step Solution
- Step 1: Write the proportion equation
19,419,840.40 : 29,105,402.70 = 10,299,427.12 : x - Step 2: Convert to fraction form
19,419,840.40/29,105,402.70 = 10,299,427.12/x - Step 3: Cross multiply
19,419,840.40x = 29,105,402.70 × 10,299,427.12 - Step 4: Simplify right side
19,419,840.40x = 299,768,973,906,901.19 - Step 5: Solve for x
x = 299,768,973,906,901.19/19,419,840.40 - Step 6: Final answer
x = 15,436,222.32
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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.