Finding the Fourth Proportional to 81,650,233.80, 122,475,350.70 and 51,417,145.80
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Solution
The fourth proportional to 81,650,233.80, 122,475,350.70 and 51,417,145.80 is: 77,125,718.70
Step by Step Solution
- Step 1: Write the proportion equation
81,650,233.80 : 122,475,350.70 = 51,417,145.80 : x - Step 2: Convert to fraction form
81,650,233.80/122,475,350.70 = 51,417,145.80/x - Step 3: Cross multiply
81,650,233.80x = 122,475,350.70 × 51,417,145.80 - Step 4: Simplify right side
81,650,233.80x = 6,297,332,963,848,032 - Step 5: Solve for x
x = 6,297,332,963,848,032/81,650,233.80 - Step 6: Final answer
x = 77,125,718.70
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1.5x scale
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.