Finding the Fourth Proportional to 411,321,206.84, 567,623,203.76 and 235,112,985.60
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Solution
The fourth proportional to 411,321,206.84, 567,623,203.76 and 235,112,985.60 is: 324,455,884.87
Step by Step Solution
- Step 1: Write the proportion equation
411,321,206.84 : 567,623,203.76 = 235,112,985.60 : x - Step 2: Convert to fraction form
411,321,206.84/567,623,203.76 = 235,112,985.60/x - Step 3: Cross multiply
411,321,206.84x = 567,623,203.76 × 235,112,985.60 - Step 4: Simplify right side
411,321,206.84x = 133,455,586,131,850,736 - Step 5: Solve for x
x = 133,455,586,131,850,736/411,321,206.84 - Step 6: Final answer
x = 324,455,884.87
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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.