Finding the Fourth Proportional to 21,315,780,397.84, 29,414,611,576.86 and 11,668,644,117.94
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Solution
The fourth proportional to 21,315,780,397.84, 29,414,611,576.86 and 11,668,644,117.94 is: 16,102,090,936.94
Step by Step Solution
- Step 1: Write the proportion equation
21,315,780,397.84 : 29,414,611,576.86 = 11,668,644,117.94 : x - Step 2: Convert to fraction form
21,315,780,397.84/29,414,611,576.86 = 11,668,644,117.94/x - Step 3: Cross multiply
21,315,780,397.84x = 29,414,611,576.86 × 11,668,644,117.94 - Step 4: Simplify right side
21,315,780,397.84x = 343,228,634,357,817,278,464 - Step 5: Solve for x
x = 343,228,634,357,817,278,464/21,315,780,397.84 - Step 6: Final answer
x = 16,102,090,936.94
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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.