Finding the Fourth Proportional to 85,621,324,945.68, 118,130,771,502.72 and 49,479,190,377.48
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Solution
The fourth proportional to 85,621,324,945.68, 118,130,771,502.72 and 49,479,190,377.48 is: 68,265,878,113.07
Step by Step Solution
- Step 1: Write the proportion equation
85,621,324,945.68 : 118,130,771,502.72 = 49,479,190,377.48 : x - Step 2: Convert to fraction form
85,621,324,945.68/118,130,771,502.72 = 49,479,190,377.48/x - Step 3: Cross multiply
85,621,324,945.68x = 118,130,771,502.72 × 49,479,190,377.48 - Step 4: Simplify right side
85,621,324,945.68x = 5,845,014,932,621,672,579,072 - Step 5: Solve for x
x = 5,845,014,932,621,672,579,072/85,621,324,945.68 - Step 6: Final answer
x = 68,265,878,113.07
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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.