Finding the Fourth Proportional to 315,022,227.70, 472,391,623.95 and 120,869,115.70
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Solution
The fourth proportional to 315,022,227.70, 472,391,623.95 and 120,869,115.70 is: 181,249,298.72
Step by Step Solution
- Step 1: Write the proportion equation
315,022,227.70 : 472,391,623.95 = 120,869,115.70 : x - Step 2: Convert to fraction form
315,022,227.70/472,391,623.95 = 120,869,115.70/x - Step 3: Cross multiply
315,022,227.70x = 472,391,623.95 × 120,869,115.70 - Step 4: Simplify right side
315,022,227.70x = 57,097,557,850,923,440 - Step 5: Solve for x
x = 57,097,557,850,923,440/315,022,227.70 - Step 6: Final answer
x = 181,249,298.72
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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.