Finding the Fourth Proportional to 118,143,195.93, 163,046,646.21 and 65,230,107.52
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Solution
The fourth proportional to 118,143,195.93, 163,046,646.21 and 65,230,107.52 is: 90,022,537.31
Step by Step Solution
- Step 1: Write the proportion equation
118,143,195.93 : 163,046,646.21 = 65,230,107.52 : x - Step 2: Convert to fraction form
118,143,195.93/163,046,646.21 = 65,230,107.52/x - Step 3: Cross multiply
118,143,195.93x = 163,046,646.21 × 65,230,107.52 - Step 4: Simplify right side
118,143,195.93x = 10,635,550,263,053,702 - Step 5: Solve for x
x = 10,635,550,263,053,702/118,143,195.93 - Step 6: Final answer
x = 90,022,537.31
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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.