Finding the Fourth Proportional to 15,020,721.60, 20,731,249.74 and 8,825,767.08
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Solution
The fourth proportional to 15,020,721.60, 20,731,249.74 and 8,825,767.08 is: 12,181,117.95
Step by Step Solution
- Step 1: Write the proportion equation
15,020,721.60 : 20,731,249.74 = 8,825,767.08 : x - Step 2: Convert to fraction form
15,020,721.60/20,731,249.74 = 8,825,767.08/x - Step 3: Cross multiply
15,020,721.60x = 20,731,249.74 × 8,825,767.08 - Step 4: Simplify right side
15,020,721.60x = 182,969,181,482,550.53 - Step 5: Solve for x
x = 182,969,181,482,550.53/15,020,721.60 - Step 6: Final answer
x = 12,181,117.95
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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.