Finding the Fourth Proportional to 15,419,482.88, 23,112,948.47 and 5,174,628.99
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Solution
The fourth proportional to 15,419,482.88, 23,112,948.47 and 5,174,628.99 is: 7,756,481.47
Step by Step Solution
- Step 1: Write the proportion equation
15,419,482.88 : 23,112,948.47 = 5,174,628.99 : x - Step 2: Convert to fraction form
15,419,482.88/23,112,948.47 = 5,174,628.99/x - Step 3: Cross multiply
15,419,482.88x = 23,112,948.47 × 5,174,628.99 - Step 4: Simplify right side
15,419,482.88x = 119,600,933,171,365 - Step 5: Solve for x
x = 119,600,933,171,365/15,419,482.88 - Step 6: Final answer
x = 7,756,481.47
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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.