Finding the Fourth Proportional to 19,700,696.68, 29,569,209.91 and 9,992,122.54
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Solution
The fourth proportional to 19,700,696.68, 29,569,209.91 and 9,992,122.54 is: 14,997,396.97
Step by Step Solution
- Step 1: Write the proportion equation
19,700,696.68 : 29,569,209.91 = 9,992,122.54 : x - Step 2: Convert to fraction form
19,700,696.68/29,569,209.91 = 9,992,122.54/x - Step 3: Cross multiply
19,700,696.68x = 29,569,209.91 × 9,992,122.54 - Step 4: Simplify right side
19,700,696.68x = 295,459,168,732,799 - Step 5: Solve for x
x = 295,459,168,732,799/19,700,696.68 - Step 6: Final answer
x = 14,997,396.97
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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.