Finding the Fourth Proportional to 19,160,062.70, 28,739,823.32 and 8,919,194.62
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Solution
The fourth proportional to 19,160,062.70, 28,739,823.32 and 8,919,194.62 is: 13,378,665.90
Step by Step Solution
- Step 1: Write the proportion equation
19,160,062.70 : 28,739,823.32 = 8,919,194.62 : x - Step 2: Convert to fraction form
19,160,062.70/28,739,823.32 = 8,919,194.62/x - Step 3: Cross multiply
19,160,062.70x = 28,739,823.32 × 8,919,194.62 - Step 4: Simplify right side
19,160,062.70x = 256,336,077,535,494.53 - Step 5: Solve for x
x = 256,336,077,535,494.53/19,160,062.70 - Step 6: Final answer
x = 13,378,665.90
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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.