Finding the Fourth Proportional to 7,775,815.68, 11,668,926.02 and 3,226,864.32
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Solution
The fourth proportional to 7,775,815.68, 11,668,926.02 and 3,226,864.32 is: 4,842,455.45
Step by Step Solution
- Step 1: Write the proportion equation
7,775,815.68 : 11,668,926.02 = 3,226,864.32 : x - Step 2: Convert to fraction form
7,775,815.68/11,668,926.02 = 3,226,864.32/x - Step 3: Cross multiply
7,775,815.68x = 11,668,926.02 × 3,226,864.32 - Step 4: Simplify right side
7,775,815.68x = 37,654,041,004,932.71 - Step 5: Solve for x
x = 37,654,041,004,932.71/7,775,815.68 - Step 6: Final answer
x = 4,842,455.45
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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.