Finding the Fourth Proportional to 631,117,034.24, 870,924,798.84 and 352,660,845.92
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Solution
The fourth proportional to 631,117,034.24, 870,924,798.84 and 352,660,845.92 is: 486,662,630.90
Step by Step Solution
- Step 1: Write the proportion equation
631,117,034.24 : 870,924,798.84 = 352,660,845.92 : x - Step 2: Convert to fraction form
631,117,034.24/870,924,798.84 = 352,660,845.92/x - Step 3: Cross multiply
631,117,034.24x = 870,924,798.84 × 352,660,845.92 - Step 4: Simplify right side
631,117,034.24x = 307,141,076,291,620,288 - Step 5: Solve for x
x = 307,141,076,291,620,288/631,117,034.24 - Step 6: Final answer
x = 486,662,630.90
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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.