Finding the Fourth Proportional to 197,589,209.13, 272,672,838.63 and 109,488,910.32
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Solution
The fourth proportional to 197,589,209.13, 272,672,838.63 and 109,488,910.32 is: 151,094,546.65
Step by Step Solution
- Step 1: Write the proportion equation
197,589,209.13 : 272,672,838.63 = 109,488,910.32 : x - Step 2: Convert to fraction form
197,589,209.13/272,672,838.63 = 109,488,910.32/x - Step 3: Cross multiply
197,589,209.13x = 272,672,838.63 × 109,488,910.32 - Step 4: Simplify right side
197,589,209.13x = 29,854,651,975,459,900 - Step 5: Solve for x
x = 29,854,651,975,459,900/197,589,209.13 - Step 6: Final answer
x = 151,094,546.65
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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.