Finding the Fourth Proportional to 85,378,918.83, 117,823,173.24 and 46,220,602.12
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Solution
The fourth proportional to 85,378,918.83, 117,823,173.24 and 46,220,602.12 is: 63,784,574.52
Step by Step Solution
- Step 1: Write the proportion equation
85,378,918.83 : 117,823,173.24 = 46,220,602.12 : x - Step 2: Convert to fraction form
85,378,918.83/117,823,173.24 = 46,220,602.12/x - Step 3: Cross multiply
85,378,918.83x = 117,823,173.24 × 46,220,602.12 - Step 4: Simplify right side
85,378,918.83x = 5,445,858,010,720,641 - Step 5: Solve for x
x = 5,445,858,010,720,641/85,378,918.83 - Step 6: Final answer
x = 63,784,574.52
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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.