Finding the Fourth Proportional to 708,589,066.20, 1,062,883,599.30 and 320,424,559.80
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Solution
The fourth proportional to 708,589,066.20, 1,062,883,599.30 and 320,424,559.80 is: 480,636,839.70
Step by Step Solution
- Step 1: Write the proportion equation
708,589,066.20 : 1,062,883,599.30 = 320,424,559.80 : x - Step 2: Convert to fraction form
708,589,066.20/1,062,883,599.30 = 320,424,559.80/x - Step 3: Cross multiply
708,589,066.20x = 1,062,883,599.30 × 320,424,559.80 - Step 4: Simplify right side
708,589,066.20x = 340,574,009,424,342,080 - Step 5: Solve for x
x = 340,574,009,424,342,080/708,589,066.20 - Step 6: Final answer
x = 480,636,839.70
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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.