Finding the Fourth Proportional to 1,158,884,750.40, 1,738,327,125.60 and 886,786,958.40
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Solution
The fourth proportional to 1,158,884,750.40, 1,738,327,125.60 and 886,786,958.40 is: 1,330,180,437.60
Step by Step Solution
- Step 1: Write the proportion equation
1,158,884,750.40 : 1,738,327,125.60 = 886,786,958.40 : x - Step 2: Convert to fraction form
1,158,884,750.40/1,738,327,125.60 = 886,786,958.40/x - Step 3: Cross multiply
1,158,884,750.40x = 1,738,327,125.60 × 886,786,958.40 - Step 4: Simplify right side
1,158,884,750.40x = 1,541,525,824,415,038,720 - Step 5: Solve for x
x = 1,541,525,824,415,038,720/1,158,884,750.40 - Step 6: Final answer
x = 1,330,180,437.60
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1.5x scale
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.