Finding the Fourth Proportional to 160,686,107.36, 221,749,257.80 and 90,137,356.18
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Solution
The fourth proportional to 160,686,107.36, 221,749,257.80 and 90,137,356.18 is: 124,390,914.44
Step by Step Solution
- Step 1: Write the proportion equation
160,686,107.36 : 221,749,257.80 = 90,137,356.18 : x - Step 2: Convert to fraction form
160,686,107.36/221,749,257.80 = 90,137,356.18/x - Step 3: Cross multiply
160,686,107.36x = 221,749,257.80 × 90,137,356.18 - Step 4: Simplify right side
160,686,107.36x = 19,987,891,832,969,244 - Step 5: Solve for x
x = 19,987,891,832,969,244/160,686,107.36 - Step 6: Final answer
x = 124,390,914.44
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.