Finding the Fourth Proportional to 21,608,434.84, 29,813,166.28 and 12,440,841.88
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Solution
The fourth proportional to 21,608,434.84, 29,813,166.28 and 12,440,841.88 is: 17,164,634.57
Step by Step Solution
- Step 1: Write the proportion equation
21,608,434.84 : 29,813,166.28 = 12,440,841.88 : x - Step 2: Convert to fraction form
21,608,434.84/29,813,166.28 = 12,440,841.88/x - Step 3: Cross multiply
21,608,434.84x = 29,813,166.28 × 12,440,841.88 - Step 4: Simplify right side
21,608,434.84x = 370,900,887,631,627.88 - Step 5: Solve for x
x = 370,900,887,631,627.88/21,608,434.84 - Step 6: Final answer
x = 17,164,634.57
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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.