Finding the Fourth Proportional to 228,107,809.81, 314,794,967.24 and 129,003,377.19
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Solution
The fourth proportional to 228,107,809.81, 314,794,967.24 and 129,003,377.19 is: 178,028,161.03
Step by Step Solution
- Step 1: Write the proportion equation
228,107,809.81 : 314,794,967.24 = 129,003,377.19 : x - Step 2: Convert to fraction form
228,107,809.81/314,794,967.24 = 129,003,377.19/x - Step 3: Cross multiply
228,107,809.81x = 314,794,967.24 × 129,003,377.19 - Step 4: Simplify right side
228,107,809.81x = 40,609,613,896,375,416 - Step 5: Solve for x
x = 40,609,613,896,375,416/228,107,809.81 - Step 6: Final answer
x = 178,028,161.03
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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.