Finding the Fourth Proportional to 415,715,981.21, 623,494,501.68 and 124,583,103.97
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Solution
The fourth proportional to 415,715,981.21, 623,494,501.68 and 124,583,103.97 is: 186,850,840.09
Step by Step Solution
- Step 1: Write the proportion equation
415,715,981.21 : 623,494,501.68 = 124,583,103.97 : x - Step 2: Convert to fraction form
415,715,981.21/623,494,501.68 = 124,583,103.97/x - Step 3: Cross multiply
415,715,981.21x = 623,494,501.68 × 124,583,103.97 - Step 4: Simplify right side
415,715,981.21x = 77,676,880,326,899,856 - Step 5: Solve for x
x = 77,676,880,326,899,856/415,715,981.21 - Step 6: Final answer
x = 186,850,840.09
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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.