Finding the Fourth Proportional to 659,460,534.39, 989,194,213.58 and 386,639,982.63
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Solution
The fourth proportional to 659,460,534.39, 989,194,213.58 and 386,639,982.63 is: 579,961,974.39
Step by Step Solution
- Step 1: Write the proportion equation
659,460,534.39 : 989,194,213.58 = 386,639,982.63 : x - Step 2: Convert to fraction form
659,460,534.39/989,194,213.58 = 386,639,982.63/x - Step 3: Cross multiply
659,460,534.39x = 989,194,213.58 × 386,639,982.63 - Step 4: Simplify right side
659,460,534.39x = 382,462,033,554,334,528 - Step 5: Solve for x
x = 382,462,033,554,334,528/659,460,534.39 - Step 6: Final answer
x = 579,961,974.39
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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.