Finding the Fourth Proportional to 378,584,427.30, 567,876,640.95 and 313,961,201.70
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Solution
The fourth proportional to 378,584,427.30, 567,876,640.95 and 313,961,201.70 is: 470,941,802.55
Step by Step Solution
- Step 1: Write the proportion equation
378,584,427.30 : 567,876,640.95 = 313,961,201.70 : x - Step 2: Convert to fraction form
378,584,427.30/567,876,640.95 = 313,961,201.70/x - Step 3: Cross multiply
378,584,427.30x = 567,876,640.95 × 313,961,201.70 - Step 4: Simplify right side
378,584,427.30x = 178,291,232,610,021,440 - Step 5: Solve for x
x = 178,291,232,610,021,440/378,584,427.30 - Step 6: Final answer
x = 470,941,802.55
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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.