Finding the Fourth Proportional to 86,029,614.80, 129,193,721.40 and 45,718,830.80
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Solution
The fourth proportional to 86,029,614.80, 129,193,721.40 and 45,718,830.80 is: 68,657,588.47
Step by Step Solution
- Step 1: Write the proportion equation
86,029,614.80 : 129,193,721.40 = 45,718,830.80 : x - Step 2: Convert to fraction form
86,029,614.80/129,193,721.40 = 45,718,830.80/x - Step 3: Cross multiply
86,029,614.80x = 129,193,721.40 × 45,718,830.80 - Step 4: Simplify right side
86,029,614.80x = 5,906,585,889,108,939 - Step 5: Solve for x
x = 5,906,585,889,108,939/86,029,614.80 - Step 6: Final answer
x = 68,657,588.47
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.