Finding the Fourth Proportional to 208,744,765.80, 288,059,884.71 and 115,931,252.34
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Solution
The fourth proportional to 208,744,765.80, 288,059,884.71 and 115,931,252.34 is: 159,980,745.17
Step by Step Solution
- Step 1: Write the proportion equation
208,744,765.80 : 288,059,884.71 = 115,931,252.34 : x - Step 2: Convert to fraction form
208,744,765.80/288,059,884.71 = 115,931,252.34/x - Step 3: Cross multiply
208,744,765.80x = 288,059,884.71 × 115,931,252.34 - Step 4: Simplify right side
208,744,765.80x = 33,395,143,183,346,316 - Step 5: Solve for x
x = 33,395,143,183,346,316/208,744,765.80 - Step 6: Final answer
x = 159,980,745.17
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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.