Finding the Fourth Proportional to 129,069,831.80, 180,832,133.80 and 129,069,831.80
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Solution
The fourth proportional to 129,069,831.80, 180,832,133.80 and 129,069,831.80 is: 180,832,133.80
Step by Step Solution
- Step 1: Write the proportion equation
129,069,831.80 : 180,832,133.80 = 129,069,831.80 : x - Step 2: Convert to fraction form
129,069,831.80/180,832,133.80 = 129,069,831.80/x - Step 3: Cross multiply
129,069,831.80x = 180,832,133.80 × 129,069,831.80 - Step 4: Simplify right side
129,069,831.80x = 23,339,973,093,601,096 - Step 5: Solve for x
x = 23,339,973,093,601,096/129,069,831.80 - Step 6: Final answer
x = 180,832,133.80
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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.