Finding the Fourth Proportional to 19,969,811.06, 27,549,586.05 and 11,705,683.70
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Solution
The fourth proportional to 19,969,811.06, 27,549,586.05 and 11,705,683.70 is: 16,148,712.64
Step by Step Solution
- Step 1: Write the proportion equation
19,969,811.06 : 27,549,586.05 = 11,705,683.70 : x - Step 2: Convert to fraction form
19,969,811.06/27,549,586.05 = 11,705,683.70/x - Step 3: Cross multiply
19,969,811.06x = 27,549,586.05 × 11,705,683.70 - Step 4: Simplify right side
19,969,811.06x = 322,486,740,367,232.38 - Step 5: Solve for x
x = 322,486,740,367,232.38/19,969,811.06 - Step 6: Final answer
x = 16,148,712.64
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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.