Finding the Fourth Proportional to 312,239,436.24, 430,889,999.40 and 173,019,213.84
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Solution
The fourth proportional to 312,239,436.24, 430,889,999.40 and 173,019,213.84 is: 238,766,280.92
Step by Step Solution
- Step 1: Write the proportion equation
312,239,436.24 : 430,889,999.40 = 173,019,213.84 : x - Step 2: Convert to fraction form
312,239,436.24/430,889,999.40 = 173,019,213.84/x - Step 3: Cross multiply
312,239,436.24x = 430,889,999.40 × 173,019,213.84 - Step 4: Simplify right side
312,239,436.24x = 74,552,248,947,706,064 - Step 5: Solve for x
x = 74,552,248,947,706,064/312,239,436.24 - Step 6: Final answer
x = 238,766,280.92
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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.