Finding the Fourth Proportional to 112,343,435.80, 168,515,153.70 and 91,936,101.40
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Solution
The fourth proportional to 112,343,435.80, 168,515,153.70 and 91,936,101.40 is: 137,904,152.10
Step by Step Solution
- Step 1: Write the proportion equation
112,343,435.80 : 168,515,153.70 = 91,936,101.40 : x - Step 2: Convert to fraction form
112,343,435.80/168,515,153.70 = 91,936,101.40/x - Step 3: Cross multiply
112,343,435.80x = 168,515,153.70 × 91,936,101.40 - Step 4: Simplify right side
112,343,435.80x = 15,492,626,257,999,786 - Step 5: Solve for x
x = 15,492,626,257,999,786/112,343,435.80 - Step 6: Final answer
x = 137,904,152.10
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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.