Finding the Fourth Proportional to 730,601,403.54, 1,095,785,447.99 and 212,910,750.50
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Solution
The fourth proportional to 730,601,403.54, 1,095,785,447.99 and 212,910,750.50 is: 319,332,129.65
Step by Step Solution
- Step 1: Write the proportion equation
730,601,403.54 : 1,095,785,447.99 = 212,910,750.50 : x - Step 2: Convert to fraction form
730,601,403.54/1,095,785,447.99 = 212,910,750.50/x - Step 3: Cross multiply
730,601,403.54x = 1,095,785,447.99 × 212,910,750.50 - Step 4: Simplify right side
730,601,403.54x = 233,304,502,118,529,632 - Step 5: Solve for x
x = 233,304,502,118,529,632/730,601,403.54 - Step 6: Final answer
x = 319,332,129.65
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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.