Finding the Fourth Proportional to 250,990,137.99, 346,374,801.71 and 139,485,678.49
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Solution
The fourth proportional to 250,990,137.99, 346,374,801.71 and 139,485,678.49 is: 192,494,910.82
Step by Step Solution
- Step 1: Write the proportion equation
250,990,137.99 : 346,374,801.71 = 139,485,678.49 : x - Step 2: Convert to fraction form
250,990,137.99/346,374,801.71 = 139,485,678.49/x - Step 3: Cross multiply
250,990,137.99x = 346,374,801.71 × 139,485,678.49 - Step 4: Simplify right side
250,990,137.99x = 48,314,324,228,358,560 - Step 5: Solve for x
x = 48,314,324,228,358,560/250,990,137.99 - Step 6: Final answer
x = 192,494,910.82
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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.