Finding the Fourth Proportional to 19,969,810.56, 27,549,585.36 and 11,705,683.20
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Solution
The fourth proportional to 19,969,810.56, 27,549,585.36 and 11,705,683.20 is: 16,148,711.95
Step by Step Solution
- Step 1: Write the proportion equation
19,969,810.56 : 27,549,585.36 = 11,705,683.20 : x - Step 2: Convert to fraction form
19,969,810.56/27,549,585.36 = 11,705,683.20/x - Step 3: Cross multiply
19,969,810.56x = 27,549,585.36 × 11,705,683.20 - Step 4: Simplify right side
19,969,810.56x = 322,486,718,515,517.94 - Step 5: Solve for x
x = 322,486,718,515,517.94/19,969,810.56 - Step 6: Final answer
x = 16,148,711.95
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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.