Finding the Fourth Proportional to 18,535,199.58, 27,807,430.23 and 13,080,943.80
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Solution
The fourth proportional to 18,535,199.58, 27,807,430.23 and 13,080,943.80 is: 19,624,683.86
Step by Step Solution
- Step 1: Write the proportion equation
18,535,199.58 : 27,807,430.23 = 13,080,943.80 : x - Step 2: Convert to fraction form
18,535,199.58/27,807,430.23 = 13,080,943.80/x - Step 3: Cross multiply
18,535,199.58x = 27,807,430.23 × 13,080,943.80 - Step 4: Simplify right side
18,535,199.58x = 363,747,432,061,051.12 - Step 5: Solve for x
x = 363,747,432,061,051.12/18,535,199.58 - Step 6: Final answer
x = 19,624,683.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.