Finding the Fourth Proportional to 18,673,651.32, 25,769,588.78 and 10,413,723.08
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Solution
The fourth proportional to 18,673,651.32, 25,769,588.78 and 10,413,723.08 is: 14,370,909.95
Step by Step Solution
- Step 1: Write the proportion equation
18,673,651.32 : 25,769,588.78 = 10,413,723.08 : x - Step 2: Convert to fraction form
18,673,651.32/25,769,588.78 = 10,413,723.08/x - Step 3: Cross multiply
18,673,651.32x = 25,769,588.78 × 10,413,723.08 - Step 4: Simplify right side
18,673,651.32x = 268,357,361,545,484.59 - Step 5: Solve for x
x = 268,357,361,545,484.59/18,673,651.32 - Step 6: Final answer
x = 14,370,909.95
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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.