Finding the Fourth Proportional to 770,348,138.63, 1,063,082,491.88 and 417,924,129.38
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Solution
The fourth proportional to 770,348,138.63, 1,063,082,491.88 and 417,924,129.38 is: 576,736,416.43
Step by Step Solution
- Step 1: Write the proportion equation
770,348,138.63 : 1,063,082,491.88 = 417,924,129.38 : x - Step 2: Convert to fraction form
770,348,138.63/1,063,082,491.88 = 417,924,129.38/x - Step 3: Cross multiply
770,348,138.63x = 1,063,082,491.88 × 417,924,129.38 - Step 4: Simplify right side
770,348,138.63x = 444,287,824,870,664,896 - Step 5: Solve for x
x = 444,287,824,870,664,896/770,348,138.63 - Step 6: Final answer
x = 576,736,416.43
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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.