Finding the Fourth Proportional to 133,385,621.63, 184,072,157.84 and 72,338,837.63
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Solution
The fourth proportional to 133,385,621.63, 184,072,157.84 and 72,338,837.63 is: 99,827,595.92
Step by Step Solution
- Step 1: Write the proportion equation
133,385,621.63 : 184,072,157.84 = 72,338,837.63 : x - Step 2: Convert to fraction form
133,385,621.63/184,072,157.84 = 72,338,837.63/x - Step 3: Cross multiply
133,385,621.63x = 184,072,157.84 × 72,338,837.63 - Step 4: Simplify right side
133,385,621.63x = 13,315,565,937,451,978 - Step 5: Solve for x
x = 13,315,565,937,451,978/133,385,621.63 - Step 6: Final answer
x = 99,827,595.92
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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.