Finding the Fourth Proportional to 776,921,167.70, 1,165,381,751.55 and 741,089,359.70
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Solution
The fourth proportional to 776,921,167.70, 1,165,381,751.55 and 741,089,359.70 is: 1,111,634,039.55
Step by Step Solution
- Step 1: Write the proportion equation
776,921,167.70 : 1,165,381,751.55 = 741,089,359.70 : x - Step 2: Convert to fraction form
776,921,167.70/1,165,381,751.55 = 741,089,359.70/x - Step 3: Cross multiply
776,921,167.70x = 1,165,381,751.55 × 741,089,359.70 - Step 4: Simplify right side
776,921,167.70x = 863,652,016,062,253,952 - Step 5: Solve for x
x = 863,652,016,062,253,952/776,921,167.70 - Step 6: Final answer
x = 1,111,634,039.55
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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.