Finding the Fourth Proportional to 14,290,992.22, 19,721,748.62 and 7,764,730.65
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Solution
The fourth proportional to 14,290,992.22, 19,721,748.62 and 7,764,730.65 is: 10,715,425.75
Step by Step Solution
- Step 1: Write the proportion equation
14,290,992.22 : 19,721,748.62 = 7,764,730.65 : x - Step 2: Convert to fraction form
14,290,992.22/19,721,748.62 = 7,764,730.65/x - Step 3: Cross multiply
14,290,992.22x = 19,721,748.62 × 7,764,730.65 - Step 4: Simplify right side
14,290,992.22x = 153,134,065,981,309.22 - Step 5: Solve for x
x = 153,134,065,981,309.22/14,290,992.22 - Step 6: Final answer
x = 10,715,425.75
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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.