Finding the Fourth Proportional to 19,991,179.36, 29,986,769.28 and 4,845,110.84
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Solution
The fourth proportional to 19,991,179.36, 29,986,769.28 and 4,845,110.84 is: 7,267,666.32
Step by Step Solution
- Step 1: Write the proportion equation
19,991,179.36 : 29,986,769.28 = 4,845,110.84 : x - Step 2: Convert to fraction form
19,991,179.36/29,986,769.28 = 4,845,110.84/x - Step 3: Cross multiply
19,991,179.36x = 29,986,769.28 × 4,845,110.84 - Step 4: Simplify right side
19,991,179.36x = 145,289,220,895,107 - Step 5: Solve for x
x = 145,289,220,895,107/19,991,179.36 - Step 6: Final answer
x = 7,267,666.32
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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.