Finding the Fourth Proportional to 309,382,846.08, 426,951,187.20 and 168,255,408.48
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Solution
The fourth proportional to 309,382,846.08, 426,951,187.20 and 168,255,408.48 is: 232,194,018.88
Step by Step Solution
- Step 1: Write the proportion equation
309,382,846.08 : 426,951,187.20 = 168,255,408.48 : x - Step 2: Convert to fraction form
309,382,846.08/426,951,187.20 = 168,255,408.48/x - Step 3: Cross multiply
309,382,846.08x = 426,951,187.20 × 168,255,408.48 - Step 4: Simplify right side
309,382,846.08x = 71,836,846,403,356,944 - Step 5: Solve for x
x = 71,836,846,403,356,944/309,382,846.08 - Step 6: Final answer
x = 232,194,018.88
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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.