Finding the Fourth Proportional to 208,062,676.18, 287,126,487.85 and 115,249,162.72
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Solution
The fourth proportional to 208,062,676.18, 287,126,487.85 and 115,249,162.72 is: 159,043,841.63
Step by Step Solution
- Step 1: Write the proportion equation
208,062,676.18 : 287,126,487.85 = 115,249,162.72 : x - Step 2: Convert to fraction form
208,062,676.18/287,126,487.85 = 115,249,162.72/x - Step 3: Cross multiply
208,062,676.18x = 287,126,487.85 × 115,249,162.72 - Step 4: Simplify right side
208,062,676.18x = 33,091,087,318,011,124 - Step 5: Solve for x
x = 33,091,087,318,011,124/208,062,676.18 - Step 6: Final answer
x = 159,043,841.63
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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.