Finding the Fourth Proportional to 149,431,930.97, 206,221,192.58 and 86,703,292.13
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Solution
The fourth proportional to 149,431,930.97, 206,221,192.58 and 86,703,292.13 is: 119,653,518.41
Step by Step Solution
- Step 1: Write the proportion equation
149,431,930.97 : 206,221,192.58 = 86,703,292.13 : x - Step 2: Convert to fraction form
149,431,930.97/206,221,192.58 = 86,703,292.13/x - Step 3: Cross multiply
149,431,930.97x = 206,221,192.58 × 86,703,292.13 - Step 4: Simplify right side
149,431,930.97x = 17,880,056,302,846,382 - Step 5: Solve for x
x = 17,880,056,302,846,382/149,431,930.97 - Step 6: Final answer
x = 119,653,518.41
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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.