Finding the Fourth Proportional to 103,839,642.93, 143,342,830.14 and 64,700,757.08
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Solution
The fourth proportional to 103,839,642.93, 143,342,830.14 and 64,700,757.08 is: 89,314,537.01
Step by Step Solution
- Step 1: Write the proportion equation
103,839,642.93 : 143,342,830.14 = 64,700,757.08 : x - Step 2: Convert to fraction form
103,839,642.93/143,342,830.14 = 64,700,757.08/x - Step 3: Cross multiply
103,839,642.93x = 143,342,830.14 × 64,700,757.08 - Step 4: Simplify right side
103,839,642.93x = 9,274,389,631,626,036 - Step 5: Solve for x
x = 9,274,389,631,626,036/103,839,642.93 - Step 6: Final answer
x = 89,314,537.01
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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.