Finding the Fourth Proportional to 103,896,635.78, 155,848,939.58 and 46,389,405.17
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Solution
The fourth proportional to 103,896,635.78, 155,848,939.58 and 46,389,405.17 is: 69,585,887.45
Step by Step Solution
- Step 1: Write the proportion equation
103,896,635.78 : 155,848,939.58 = 46,389,405.17 : x - Step 2: Convert to fraction form
103,896,635.78/155,848,939.58 = 46,389,405.17/x - Step 3: Cross multiply
103,896,635.78x = 155,848,939.58 × 46,389,405.17 - Step 4: Simplify right side
103,896,635.78x = 7,229,739,603,997,066 - Step 5: Solve for x
x = 7,229,739,603,997,066/103,896,635.78 - Step 6: Final answer
x = 69,585,887.45
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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.