Finding the Fourth Proportional to 13,176,348.70, 19,767,930.66 and 7,716,054.84
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Solution
The fourth proportional to 13,176,348.70, 19,767,930.66 and 7,716,054.84 is: 11,576,077.75
Step by Step Solution
- Step 1: Write the proportion equation
13,176,348.70 : 19,767,930.66 = 7,716,054.84 : x - Step 2: Convert to fraction form
13,176,348.70/19,767,930.66 = 7,716,054.84/x - Step 3: Cross multiply
13,176,348.70x = 19,767,930.66 × 7,716,054.84 - Step 4: Simplify right side
13,176,348.70x = 152,530,437,045,877.41 - Step 5: Solve for x
x = 152,530,437,045,877.41/13,176,348.70 - Step 6: Final answer
x = 11,576,077.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.