Finding the Fourth Proportional to 15,559,006.56, 21,474,239.45 and 9,279,936.49
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Solution
The fourth proportional to 15,559,006.56, 21,474,239.45 and 9,279,936.49 is: 12,807,988.58
Step by Step Solution
- Step 1: Write the proportion equation
15,559,006.56 : 21,474,239.45 = 9,279,936.49 : x - Step 2: Convert to fraction form
15,559,006.56/21,474,239.45 = 9,279,936.49/x - Step 3: Cross multiply
15,559,006.56x = 21,474,239.45 × 9,279,936.49 - Step 4: Simplify right side
15,559,006.56x = 199,279,578,358,981.62 - Step 5: Solve for x
x = 199,279,578,358,981.62/15,559,006.56 - Step 6: Final answer
x = 12,807,988.58
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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.