Finding the Fourth Proportional to 1,259,908,413,678.80, 1,738,655,107,286.60 and 703,721,657,406.55
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Solution
The fourth proportional to 1,259,908,413,678.80, 1,738,655,107,286.60 and 703,721,657,406.55 is: 971,125,552,043.51
Step by Step Solution
- Step 1: Write the proportion equation
1,259,908,413,678.80 : 1,738,655,107,286.60 = 703,721,657,406.55 : x - Step 2: Convert to fraction form
1,259,908,413,678.80/1,738,655,107,286.60 = 703,721,657,406.55/x - Step 3: Cross multiply
1,259,908,413,678.80x = 1,738,655,107,286.60 × 703,721,657,406.55 - Step 4: Simplify right side
1,259,908,413,678.80x = 1,223,529,253,758,089,440,526,336 - Step 5: Solve for x
x = 1,223,529,253,758,089,440,526,336/1,259,908,413,678.80 - Step 6: Final answer
x = 971,125,552,043.51
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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.