Finding the Fourth Proportional to 315,022,901.70, 472,392,634.95 and 120,869,789.70
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Solution
The fourth proportional to 315,022,901.70, 472,392,634.95 and 120,869,789.70 is: 181,250,309.53
Step by Step Solution
- Step 1: Write the proportion equation
315,022,901.70 : 472,392,634.95 = 120,869,789.70 : x - Step 2: Convert to fraction form
315,022,901.70/472,392,634.95 = 120,869,789.70/x - Step 3: Cross multiply
315,022,901.70x = 472,392,634.95 × 120,869,789.70 - Step 4: Simplify right side
315,022,901.70x = 57,097,998,442,235,368 - Step 5: Solve for x
x = 57,097,998,442,235,368/315,022,901.70 - Step 6: Final answer
x = 181,250,309.53
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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.