Finding the Fourth Proportional to 77,145,286.46, 115,718,578.41 and 19,637,567.42
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Solution
The fourth proportional to 77,145,286.46, 115,718,578.41 and 19,637,567.42 is: 29,456,516.26
Step by Step Solution
- Step 1: Write the proportion equation
77,145,286.46 : 115,718,578.41 = 19,637,567.42 : x - Step 2: Convert to fraction form
77,145,286.46/115,718,578.41 = 19,637,567.42/x - Step 3: Cross multiply
77,145,286.46x = 115,718,578.41 × 19,637,567.42 - Step 4: Simplify right side
77,145,286.46x = 2,272,431,385,272,931.50 - Step 5: Solve for x
x = 2,272,431,385,272,931.50/77,145,286.46 - Step 6: Final answer
x = 29,456,516.26
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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.