Finding the Fourth Proportional to 138,463,853.18, 207,706,777.65 and 46,348,077.49
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Solution
The fourth proportional to 138,463,853.18, 207,706,777.65 and 46,348,077.49 is: 69,525,797.56
Step by Step Solution
- Step 1: Write the proportion equation
138,463,853.18 : 207,706,777.65 = 46,348,077.49 : x - Step 2: Convert to fraction form
138,463,853.18/207,706,777.65 = 46,348,077.49/x - Step 3: Cross multiply
138,463,853.18x = 207,706,777.65 × 46,348,077.49 - Step 4: Simplify right side
138,463,853.18x = 9,626,809,825,201,132 - Step 5: Solve for x
x = 9,626,809,825,201,132/138,463,853.18 - Step 6: Final answer
x = 69,525,797.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.