Finding the Fourth Proportional to 19,012,738.80, 28,527,506.28 and 7,675,330.80
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Solution
The fourth proportional to 19,012,738.80, 28,527,506.28 and 7,675,330.80 is: 11,516,386.46
Step by Step Solution
- Step 1: Write the proportion equation
19,012,738.80 : 28,527,506.28 = 7,675,330.80 : x - Step 2: Convert to fraction form
19,012,738.80/28,527,506.28 = 7,675,330.80/x - Step 3: Cross multiply
19,012,738.80x = 28,527,506.28 × 7,675,330.80 - Step 4: Simplify right side
19,012,738.80x = 218,958,047,598,077.44 - Step 5: Solve for x
x = 218,958,047,598,077.44/19,012,738.80 - Step 6: Final answer
x = 11,516,386.46
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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.