Finding the Fourth Proportional to 106,831,431.40, 160,415,108.70 and 61,481,799.40
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Solution
The fourth proportional to 106,831,431.40, 160,415,108.70 and 61,481,799.40 is: 92,319,361.49
Step by Step Solution
- Step 1: Write the proportion equation
106,831,431.40 : 160,415,108.70 = 61,481,799.40 : x - Step 2: Convert to fraction form
106,831,431.40/160,415,108.70 = 61,481,799.40/x - Step 3: Cross multiply
106,831,431.40x = 160,415,108.70 × 61,481,799.40 - Step 4: Simplify right side
106,831,431.40x = 9,862,609,533,822,594 - Step 5: Solve for x
x = 9,862,609,533,822,594/106,831,431.40 - Step 6: Final answer
x = 92,319,361.49
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1.5x scale
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.