Finding the Fourth Proportional to 39,282,064.98, 54,210,932.19 and 21,878,414.70
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Solution
The fourth proportional to 39,282,064.98, 54,210,932.19 and 21,878,414.70 is: 30,193,149.38
Step by Step Solution
- Step 1: Write the proportion equation
39,282,064.98 : 54,210,932.19 = 21,878,414.70 : x - Step 2: Convert to fraction form
39,282,064.98/54,210,932.19 = 21,878,414.70/x - Step 3: Cross multiply
39,282,064.98x = 54,210,932.19 × 21,878,414.70 - Step 4: Simplify right side
39,282,064.98x = 1,186,049,255,726,399 - Step 5: Solve for x
x = 1,186,049,255,726,399/39,282,064.98 - Step 6: Final answer
x = 30,193,149.38
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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.