Finding the Fourth Proportional to 20,967,607.18, 28,944,226.14 and 14,096,075.05
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Solution
The fourth proportional to 20,967,607.18, 28,944,226.14 and 14,096,075.05 is: 19,458,585.83
Step by Step Solution
- Step 1: Write the proportion equation
20,967,607.18 : 28,944,226.14 = 14,096,075.05 : x - Step 2: Convert to fraction form
20,967,607.18/28,944,226.14 = 14,096,075.05/x - Step 3: Cross multiply
20,967,607.18x = 28,944,226.14 × 14,096,075.05 - Step 4: Simplify right side
20,967,607.18x = 407,999,983,933,611.81 - Step 5: Solve for x
x = 407,999,983,933,611.81/20,967,607.18 - Step 6: Final answer
x = 19,458,585.83
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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.