Finding the Fourth Proportional to 1,133,428,546.08, 1,564,110,144.72 and 631,626,287.58
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Solution
The fourth proportional to 1,133,428,546.08, 1,564,110,144.72 and 631,626,287.58 is: 871,632,435.49
Step by Step Solution
- Step 1: Write the proportion equation
1,133,428,546.08 : 1,564,110,144.72 = 631,626,287.58 : x - Step 2: Convert to fraction form
1,133,428,546.08/1,564,110,144.72 = 631,626,287.58/x - Step 3: Cross multiply
1,133,428,546.08x = 1,564,110,144.72 × 631,626,287.58 - Step 4: Simplify right side
1,133,428,546.08x = 987,933,084,075,710,208 - Step 5: Solve for x
x = 987,933,084,075,710,208/1,133,428,546.08 - Step 6: Final answer
x = 871,632,435.49
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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.