Finding the Fourth Proportional to 26,378,042.81, 36,402,859.35 and 14,617,278.05
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Solution
The fourth proportional to 26,378,042.81, 36,402,859.35 and 14,617,278.05 is: 20,172,486.67
Step by Step Solution
- Step 1: Write the proportion equation
26,378,042.81 : 36,402,859.35 = 14,617,278.05 : x - Step 2: Convert to fraction form
26,378,042.81/36,402,859.35 = 14,617,278.05/x - Step 3: Cross multiply
26,378,042.81x = 36,402,859.35 × 14,617,278.05 - Step 4: Simplify right side
26,378,042.81x = 532,110,716,751,978 - Step 5: Solve for x
x = 532,110,716,751,978/26,378,042.81 - Step 6: Final answer
x = 20,172,486.67
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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.