Finding the Fourth Proportional to 644,719,746.12, 889,716,262.60 and 366,276,548.58
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Solution
The fourth proportional to 644,719,746.12, 889,716,262.60 and 366,276,548.58 is: 505,463,348.75
Step by Step Solution
- Step 1: Write the proportion equation
644,719,746.12 : 889,716,262.60 = 366,276,548.58 : x - Step 2: Convert to fraction form
644,719,746.12/889,716,262.60 = 366,276,548.58/x - Step 3: Cross multiply
644,719,746.12x = 889,716,262.60 × 366,276,548.58 - Step 4: Simplify right side
644,719,746.12x = 325,882,201,880,624,960 - Step 5: Solve for x
x = 325,882,201,880,624,960/644,719,746.12 - Step 6: Final answer
x = 505,463,348.75
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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.