Finding the Fourth Proportional to 407,972,344.51, 562,996,449.88 and 226,918,104.99
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Solution
The fourth proportional to 407,972,344.51, 562,996,449.88 and 226,918,104.99 is: 313,143,989.40
Step by Step Solution
- Step 1: Write the proportion equation
407,972,344.51 : 562,996,449.88 = 226,918,104.99 : x - Step 2: Convert to fraction form
407,972,344.51/562,996,449.88 = 226,918,104.99/x - Step 3: Cross multiply
407,972,344.51x = 562,996,449.88 × 226,918,104.99 - Step 4: Simplify right side
407,972,344.51x = 127,754,087,522,867,120 - Step 5: Solve for x
x = 127,754,087,522,867,120/407,972,344.51 - Step 6: Final answer
x = 313,143,989.40
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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.