Finding the Fourth Proportional to 1,303,042,561,476.40, 1,798,199,028,353.60 and 717,092,407,125.05
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Solution
The fourth proportional to 1,303,042,561,476.40, 1,798,199,028,353.60 and 717,092,407,125.05 is: 989,587,683,360.84
Step by Step Solution
- Step 1: Write the proportion equation
1,303,042,561,476.40 : 1,798,199,028,353.60 = 717,092,407,125.05 : x - Step 2: Convert to fraction form
1,303,042,561,476.40/1,798,199,028,353.60 = 717,092,407,125.05/x - Step 3: Cross multiply
1,303,042,561,476.40x = 1,798,199,028,353.60 × 717,092,407,125.05 - Step 4: Simplify right side
1,303,042,561,476.40x = 1,289,474,869,732,009,117,220,864 - Step 5: Solve for x
x = 1,289,474,869,732,009,117,220,864/1,303,042,561,476.40 - Step 6: Final answer
x = 989,587,683,360.84
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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.