Finding the Fourth Proportional to 100,503,365.62, 138,698,814.29 and 55,849,170.96
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Solution
The fourth proportional to 100,503,365.62, 138,698,814.29 and 55,849,170.96 is: 77,074,173.03
Step by Step Solution
- Step 1: Write the proportion equation
100,503,365.62 : 138,698,814.29 = 55,849,170.96 : x - Step 2: Convert to fraction form
100,503,365.62/138,698,814.29 = 55,849,170.96/x - Step 3: Cross multiply
100,503,365.62x = 138,698,814.29 × 55,849,170.96 - Step 4: Simplify right side
100,503,365.62x = 7,746,213,791,656,148 - Step 5: Solve for x
x = 7,746,213,791,656,148/100,503,365.62 - Step 6: Final answer
x = 77,074,173.03
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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.