Finding the Fourth Proportional to 681,080,324.74, 939,890,812.17 and 367,814,508.53
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Solution
The fourth proportional to 681,080,324.74, 939,890,812.17 and 367,814,508.53 is: 507,584,002.34
Step by Step Solution
- Step 1: Write the proportion equation
681,080,324.74 : 939,890,812.17 = 367,814,508.53 : x - Step 2: Convert to fraction form
681,080,324.74/939,890,812.17 = 367,814,508.53/x - Step 3: Cross multiply
681,080,324.74x = 939,890,812.17 × 367,814,508.53 - Step 4: Simplify right side
681,080,324.74x = 345,705,477,148,481,280 - Step 5: Solve for x
x = 345,705,477,148,481,280/681,080,324.74 - Step 6: Final answer
x = 507,584,002.34
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1.5x scale
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.