Finding the Fourth Proportional to 11,559,011.46, 15,940,428.58 and 6,912,039.70
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Solution
The fourth proportional to 11,559,011.46, 15,940,428.58 and 6,912,039.70 is: 9,532,032.70
Step by Step Solution
- Step 1: Write the proportion equation
11,559,011.46 : 15,940,428.58 = 6,912,039.70 : x - Step 2: Convert to fraction form
11,559,011.46/15,940,428.58 = 6,912,039.70/x - Step 3: Cross multiply
11,559,011.46x = 15,940,428.58 × 6,912,039.70 - Step 4: Simplify right side
11,559,011.46x = 110,180,875,179,974.62 - Step 5: Solve for x
x = 110,180,875,179,974.62/11,559,011.46 - Step 6: Final answer
x = 9,532,032.70
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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.