Finding the Fourth Proportional to 234,563,906.45, 323,703,134.98 and 128,716,395.95
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Solution
The fourth proportional to 234,563,906.45, 323,703,134.98 and 128,716,395.95 is: 177,631,339.46
Step by Step Solution
- Step 1: Write the proportion equation
234,563,906.45 : 323,703,134.98 = 128,716,395.95 : x - Step 2: Convert to fraction form
234,563,906.45/323,703,134.98 = 128,716,395.95/x - Step 3: Cross multiply
234,563,906.45x = 323,703,134.98 × 128,716,395.95 - Step 4: Simplify right side
234,563,906.45x = 41,665,900,892,829,448 - Step 5: Solve for x
x = 41,665,900,892,829,448/234,563,906.45 - Step 6: Final answer
x = 177,631,339.46
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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.