Finding the Fourth Proportional to 14,429,451.30, 19,912,965.05 and 8,234,374.65
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Solution
The fourth proportional to 14,429,451.30, 19,912,965.05 and 8,234,374.65 is: 11,363,620.92
Step by Step Solution
- Step 1: Write the proportion equation
14,429,451.30 : 19,912,965.05 = 8,234,374.65 : x - Step 2: Convert to fraction form
14,429,451.30/19,912,965.05 = 8,234,374.65/x - Step 3: Cross multiply
14,429,451.30x = 19,912,965.05 × 8,234,374.65 - Step 4: Simplify right side
14,429,451.30x = 163,970,814,614,056 - Step 5: Solve for x
x = 163,970,814,614,056/14,429,451.30 - Step 6: Final answer
x = 11,363,620.92
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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.