Finding the Fourth Proportional to 138,370,267.06, 190,941,868.29 and 79,623,452.14
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Solution
The fourth proportional to 138,370,267.06, 190,941,868.29 and 79,623,452.14 is: 109,875,127.33
Step by Step Solution
- Step 1: Write the proportion equation
138,370,267.06 : 190,941,868.29 = 79,623,452.14 : x - Step 2: Convert to fraction form
138,370,267.06/190,941,868.29 = 79,623,452.14/x - Step 3: Cross multiply
138,370,267.06x = 190,941,868.29 × 79,623,452.14 - Step 4: Simplify right side
138,370,267.06x = 15,203,450,711,310,998 - Step 5: Solve for x
x = 15,203,450,711,310,998/138,370,267.06 - Step 6: Final answer
x = 109,875,127.33
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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.