Finding the Fourth Proportional to 68,103,516.62, 93,984,837.84 and 37,165,678.76
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Solution
The fourth proportional to 68,103,516.62, 93,984,837.84 and 37,165,678.76 is: 51,289,719.90
Step by Step Solution
- Step 1: Write the proportion equation
68,103,516.62 : 93,984,837.84 = 37,165,678.76 : x - Step 2: Convert to fraction form
68,103,516.62/93,984,837.84 = 37,165,678.76/x - Step 3: Cross multiply
68,103,516.62x = 93,984,837.84 × 37,165,678.76 - Step 4: Simplify right side
68,103,516.62x = 3,493,010,291,472,132 - Step 5: Solve for x
x = 3,493,010,291,472,132/68,103,516.62 - Step 6: Final answer
x = 51,289,719.90
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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.