Finding the Fourth Proportional to 324,681,330.40, 487,021,995.60 and 247,197,232.60
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Solution
The fourth proportional to 324,681,330.40, 487,021,995.60 and 247,197,232.60 is: 370,795,848.90
Step by Step Solution
- Step 1: Write the proportion equation
324,681,330.40 : 487,021,995.60 = 247,197,232.60 : x - Step 2: Convert to fraction form
324,681,330.40/487,021,995.60 = 247,197,232.60/x - Step 3: Cross multiply
324,681,330.40x = 487,021,995.60 × 247,197,232.60 - Step 4: Simplify right side
324,681,330.40x = 120,390,489,527,649,376 - Step 5: Solve for x
x = 120,390,489,527,649,376/324,681,330.40 - Step 6: Final answer
x = 370,795,848.90
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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.