Finding the Fourth Proportional to 251,205,719.99, 376,808,678.39 and 78,695,936.37
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Solution
The fourth proportional to 251,205,719.99, 376,808,678.39 and 78,695,936.37 is: 118,043,935.39
Step by Step Solution
- Step 1: Write the proportion equation
251,205,719.99 : 376,808,678.39 = 78,695,936.37 : x - Step 2: Convert to fraction form
251,205,719.99/376,808,678.39 = 78,695,936.37/x - Step 3: Cross multiply
251,205,719.99x = 376,808,678.39 × 78,695,936.37 - Step 4: Simplify right side
251,205,719.99x = 29,653,311,778,439,976 - Step 5: Solve for x
x = 29,653,311,778,439,976/251,205,719.99 - Step 6: Final answer
x = 118,043,935.39
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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.