Finding the Fourth Proportional to 74,690,160.40, 112,035,240.60 and 67,994,003.80
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Solution
The fourth proportional to 74,690,160.40, 112,035,240.60 and 67,994,003.80 is: 101,991,005.70
Step by Step Solution
- Step 1: Write the proportion equation
74,690,160.40 : 112,035,240.60 = 67,994,003.80 : x - Step 2: Convert to fraction form
74,690,160.40/112,035,240.60 = 67,994,003.80/x - Step 3: Cross multiply
74,690,160.40x = 112,035,240.60 × 67,994,003.80 - Step 4: Simplify right side
74,690,160.40x = 7,617,724,575,090,314 - Step 5: Solve for x
x = 7,617,724,575,090,314/74,690,160.40 - Step 6: Final answer
x = 101,991,005.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.