Finding the Fourth Proportional to 112,161,776.20, 168,242,664.30 and 96,767,369.80
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Solution
The fourth proportional to 112,161,776.20, 168,242,664.30 and 96,767,369.80 is: 145,151,054.70
Step by Step Solution
- Step 1: Write the proportion equation
112,161,776.20 : 168,242,664.30 = 96,767,369.80 : x - Step 2: Convert to fraction form
112,161,776.20/168,242,664.30 = 96,767,369.80/x - Step 3: Cross multiply
112,161,776.20x = 168,242,664.30 × 96,767,369.80 - Step 4: Simplify right side
112,161,776.20x = 16,280,400,112,455,358 - Step 5: Solve for x
x = 16,280,400,112,455,358/112,161,776.20 - Step 6: Final answer
x = 145,151,054.70
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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.