Finding the Fourth Proportional to 87,816,905.73, 121,187,472.33 and 48,118,128.08
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Solution
The fourth proportional to 87,816,905.73, 121,187,472.33 and 48,118,128.08 is: 66,403,094.78
Step by Step Solution
- Step 1: Write the proportion equation
87,816,905.73 : 121,187,472.33 = 48,118,128.08 : x - Step 2: Convert to fraction form
87,816,905.73/121,187,472.33 = 48,118,128.08/x - Step 3: Cross multiply
87,816,905.73x = 121,187,472.33 × 48,118,128.08 - Step 4: Simplify right side
87,816,905.73x = 5,831,314,314,660,459 - Step 5: Solve for x
x = 5,831,314,314,660,459/87,816,905.73 - Step 6: Final answer
x = 66,403,094.78
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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.