Finding the Fourth Proportional to 97,485,990.49, 134,545,105.83 and 61,725,755.12
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Solution
The fourth proportional to 97,485,990.49, 134,545,105.83 and 61,725,755.12 is: 85,190,684.45
Step by Step Solution
- Step 1: Write the proportion equation
97,485,990.49 : 134,545,105.83 = 61,725,755.12 : x - Step 2: Convert to fraction form
97,485,990.49/134,545,105.83 = 61,725,755.12/x - Step 3: Cross multiply
97,485,990.49x = 134,545,105.83 × 61,725,755.12 - Step 4: Simplify right side
97,485,990.49x = 8,304,898,254,384,340 - Step 5: Solve for x
x = 8,304,898,254,384,340/97,485,990.49 - Step 6: Final answer
x = 85,190,684.45
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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.