Finding the Fourth Proportional to 19,974,132.80, 29,910,511.20 and 10,988,532.80
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Solution
The fourth proportional to 19,974,132.80, 29,910,511.20 and 10,988,532.80 is: 16,454,913.80
Step by Step Solution
- Step 1: Write the proportion equation
19,974,132.80 : 29,910,511.20 = 10,988,532.80 : x - Step 2: Convert to fraction form
19,974,132.80/29,910,511.20 = 10,988,532.80/x - Step 3: Cross multiply
19,974,132.80x = 29,910,511.20 × 10,988,532.80 - Step 4: Simplify right side
19,974,132.80x = 328,672,633,385,967.38 - Step 5: Solve for x
x = 328,672,633,385,967.38/19,974,132.80 - Step 6: Final answer
x = 16,454,913.80
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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.