Finding the Fourth Proportional to 140,125,832.16, 193,372,878.60 and 77,406,244.80
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Solution
The fourth proportional to 140,125,832.16, 193,372,878.60 and 77,406,244.80 is: 106,820,192.59
Step by Step Solution
- Step 1: Write the proportion equation
140,125,832.16 : 193,372,878.60 = 77,406,244.80 : x - Step 2: Convert to fraction form
140,125,832.16/193,372,878.60 = 77,406,244.80/x - Step 3: Cross multiply
140,125,832.16x = 193,372,878.60 × 77,406,244.80 - Step 4: Simplify right side
140,125,832.16x = 14,968,268,378,592,280 - Step 5: Solve for x
x = 14,968,268,378,592,280/140,125,832.16 - Step 6: Final answer
x = 106,820,192.59
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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.