Finding the Fourth Proportional to 378,749,171.98, 567,621,513.42 and 194,509,206.10
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Solution
The fourth proportional to 378,749,171.98, 567,621,513.42 and 194,509,206.10 is: 291,505,878.05
Step by Step Solution
- Step 1: Write the proportion equation
378,749,171.98 : 567,621,513.42 = 194,509,206.10 : x - Step 2: Convert to fraction form
378,749,171.98/567,621,513.42 = 194,509,206.10/x - Step 3: Cross multiply
378,749,171.98x = 567,621,513.42 × 194,509,206.10 - Step 4: Simplify right side
378,749,171.98x = 110,407,609,940,604,688 - Step 5: Solve for x
x = 110,407,609,940,604,688/378,749,171.98 - Step 6: Final answer
x = 291,505,878.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.