Finding the Fourth Proportional to 159,860,811.12, 220,613,267.16 and 97,969,197.12
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Solution
The fourth proportional to 159,860,811.12, 220,613,267.16 and 97,969,197.12 is: 135,200,769.38
Step by Step Solution
- Step 1: Write the proportion equation
159,860,811.12 : 220,613,267.16 = 97,969,197.12 : x - Step 2: Convert to fraction form
159,860,811.12/220,613,267.16 = 97,969,197.12/x - Step 3: Cross multiply
159,860,811.12x = 220,613,267.16 × 97,969,197.12 - Step 4: Simplify right side
159,860,811.12x = 21,613,304,657,685,264 - Step 5: Solve for x
x = 21,613,304,657,685,264/159,860,811.12 - Step 6: Final answer
x = 135,200,769.38
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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.