Finding the Fourth Proportional to 74,010,809.42, 102,136,126.18 and 40,519,729.74
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Solution
The fourth proportional to 74,010,809.42, 102,136,126.18 and 40,519,729.74 is: 55,917,889.05
Step by Step Solution
- Step 1: Write the proportion equation
74,010,809.42 : 102,136,126.18 = 40,519,729.74 : x - Step 2: Convert to fraction form
74,010,809.42/102,136,126.18 = 40,519,729.74/x - Step 3: Cross multiply
74,010,809.42x = 102,136,126.18 × 40,519,729.74 - Step 4: Simplify right side
74,010,809.42x = 4,138,528,229,504,139 - Step 5: Solve for x
x = 4,138,528,229,504,139/74,010,809.42 - Step 6: Final answer
x = 55,917,889.05
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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.