Finding the Fourth Proportional to 786,724,819.56, 1,085,651,796.60 and 434,293,246.08
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Solution
The fourth proportional to 786,724,819.56, 1,085,651,796.60 and 434,293,246.08 is: 599,308,972.00
Step by Step Solution
- Step 1: Write the proportion equation
786,724,819.56 : 1,085,651,796.60 = 434,293,246.08 : x - Step 2: Convert to fraction form
786,724,819.56/1,085,651,796.60 = 434,293,246.08/x - Step 3: Cross multiply
786,724,819.56x = 1,085,651,796.60 × 434,293,246.08 - Step 4: Simplify right side
786,724,819.56x = 471,491,242,857,997,824 - Step 5: Solve for x
x = 471,491,242,857,997,824/786,724,819.56 - Step 6: Final answer
x = 599,308,972.00
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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.