Finding the Fourth Proportional to 129,303,656.70, 181,478,615.70 and 129,303,656.70
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Solution
The fourth proportional to 129,303,656.70, 181,478,615.70 and 129,303,656.70 is: 181,478,615.70
Step by Step Solution
- Step 1: Write the proportion equation
129,303,656.70 : 181,478,615.70 = 129,303,656.70 : x - Step 2: Convert to fraction form
129,303,656.70/181,478,615.70 = 129,303,656.70/x - Step 3: Cross multiply
129,303,656.70x = 181,478,615.70 × 129,303,656.70 - Step 4: Simplify right side
129,303,656.70x = 23,465,848,622,864,028 - Step 5: Solve for x
x = 23,465,848,622,864,028/129,303,656.70 - Step 6: Final answer
x = 181,478,615.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.