Finding the Fourth Proportional to 97,880,835.12, 135,079,018.86 and 53,831,243.40
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Solution
The fourth proportional to 97,880,835.12, 135,079,018.86 and 53,831,243.40 is: 74,289,022.30
Step by Step Solution
- Step 1: Write the proportion equation
97,880,835.12 : 135,079,018.86 = 53,831,243.40 : x - Step 2: Convert to fraction form
97,880,835.12/135,079,018.86 = 53,831,243.40/x - Step 3: Cross multiply
97,880,835.12x = 135,079,018.86 × 53,831,243.40 - Step 4: Simplify right side
97,880,835.12x = 7,271,471,542,485,851 - Step 5: Solve for x
x = 7,271,471,542,485,851/97,880,835.12 - Step 6: Final answer
x = 74,289,022.30
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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.