Finding the Fourth Proportional to 124,772,102.40, 186,981,206.40 and 92,169,580.80
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Solution
The fourth proportional to 124,772,102.40, 186,981,206.40 and 92,169,580.80 is: 138,123,659.70
Step by Step Solution
- Step 1: Write the proportion equation
124,772,102.40 : 186,981,206.40 = 92,169,580.80 : x - Step 2: Convert to fraction form
124,772,102.40/186,981,206.40 = 92,169,580.80/x - Step 3: Cross multiply
124,772,102.40x = 186,981,206.40 × 92,169,580.80 - Step 4: Simplify right side
124,772,102.40x = 17,233,979,411,366,278 - Step 5: Solve for x
x = 17,233,979,411,366,278/124,772,102.40 - Step 6: Final answer
x = 138,123,659.70
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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.