Finding the Fourth Proportional to 29,990,886.68, 41,387,622.36 and 16,239,850.76
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Solution
The fourth proportional to 29,990,886.68, 41,387,622.36 and 16,239,850.76 is: 22,411,101.67
Step by Step Solution
- Step 1: Write the proportion equation
29,990,886.68 : 41,387,622.36 = 16,239,850.76 : x - Step 2: Convert to fraction form
29,990,886.68/41,387,622.36 = 16,239,850.76/x - Step 3: Cross multiply
29,990,886.68x = 41,387,622.36 × 16,239,850.76 - Step 4: Simplify right side
29,990,886.68x = 672,128,810,437,639 - Step 5: Solve for x
x = 672,128,810,437,639/29,990,886.68 - Step 6: Final answer
x = 22,411,101.67
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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.