Finding the Fourth Proportional to 159,685,147.64, 220,365,349.44 and 86,346,114.68
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Solution
The fourth proportional to 159,685,147.64, 220,365,349.44 and 86,346,114.68 is: 119,157,554.82
Step by Step Solution
- Step 1: Write the proportion equation
159,685,147.64 : 220,365,349.44 = 86,346,114.68 : x - Step 2: Convert to fraction form
159,685,147.64/220,365,349.44 = 86,346,114.68/x - Step 3: Cross multiply
159,685,147.64x = 220,365,349.44 × 86,346,114.68 - Step 4: Simplify right side
159,685,147.64x = 19,027,691,734,244,516 - Step 5: Solve for x
x = 19,027,691,734,244,516/159,685,147.64 - Step 6: Final answer
x = 119,157,554.82
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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.