Finding the Fourth Proportional to 170,171,220.96, 234,944,892.84 and 138,884,011.08
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Solution
The fourth proportional to 170,171,220.96, 234,944,892.84 and 138,884,011.08 is: 191,748,574.85
Step by Step Solution
- Step 1: Write the proportion equation
170,171,220.96 : 234,944,892.84 = 138,884,011.08 : x - Step 2: Convert to fraction form
170,171,220.96/234,944,892.84 = 138,884,011.08/x - Step 3: Cross multiply
170,171,220.96x = 234,944,892.84 × 138,884,011.08 - Step 4: Simplify right side
170,171,220.96x = 32,630,089,100,379,976 - Step 5: Solve for x
x = 32,630,089,100,379,976/170,171,220.96 - Step 6: Final answer
x = 191,748,574.85
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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.