Finding the Fourth Proportional to 1,067,810,427.55, 1,474,089,368.06 and 711,171,707.09
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Solution
The fourth proportional to 1,067,810,427.55, 1,474,089,368.06 and 711,171,707.09 is: 981,757,271.93
Step by Step Solution
- Step 1: Write the proportion equation
1,067,810,427.55 : 1,474,089,368.06 = 711,171,707.09 : x - Step 2: Convert to fraction form
1,067,810,427.55/1,474,089,368.06 = 711,171,707.09/x - Step 3: Cross multiply
1,067,810,427.55x = 1,474,089,368.06 × 711,171,707.09 - Step 4: Simplify right side
1,067,810,427.55x = 1,048,330,652,291,912,576 - Step 5: Solve for x
x = 1,048,330,652,291,912,576/1,067,810,427.55 - Step 6: Final answer
x = 981,757,271.93
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1.5x scale
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.