Finding the Fourth Proportional to 20,510,758.19, 28,304,616.98 and 11,218,595.23
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Solution
The fourth proportional to 20,510,758.19, 28,304,616.98 and 11,218,595.23 is: 15,481,535.99
Step by Step Solution
- Step 1: Write the proportion equation
20,510,758.19 : 28,304,616.98 = 11,218,595.23 : x - Step 2: Convert to fraction form
20,510,758.19/28,304,616.98 = 11,218,595.23/x - Step 3: Cross multiply
20,510,758.19x = 28,304,616.98 × 11,218,595.23 - Step 4: Simplify right side
20,510,758.19x = 317,538,041,038,805 - Step 5: Solve for x
x = 317,538,041,038,805/20,510,758.19 - Step 6: Final answer
x = 15,481,535.99
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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.