Finding the Fourth Proportional to 827,591,458.88, 1,142,127,190.32 and 456,312,342.08
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Solution
The fourth proportional to 827,591,458.88, 1,142,127,190.32 and 456,312,342.08 is: 629,739,139.49
Step by Step Solution
- Step 1: Write the proportion equation
827,591,458.88 : 1,142,127,190.32 = 456,312,342.08 : x - Step 2: Convert to fraction form
827,591,458.88/1,142,127,190.32 = 456,312,342.08/x - Step 3: Cross multiply
827,591,458.88x = 1,142,127,190.32 × 456,312,342.08 - Step 4: Simplify right side
827,591,458.88x = 521,166,733,168,169,024 - Step 5: Solve for x
x = 521,166,733,168,169,024/827,591,458.88 - Step 6: Final answer
x = 629,739,139.49
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1.5x scale
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.