Finding the Fourth Proportional to 1,508,433,892.08, 2,080,459,495.68 and 979,968,148.80
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Solution
The fourth proportional to 1,508,433,892.08, 2,080,459,495.68 and 979,968,148.80 is: 1,351,589,918.09
Step by Step Solution
- Step 1: Write the proportion equation
1,508,433,892.08 : 2,080,459,495.68 = 979,968,148.80 : x - Step 2: Convert to fraction form
1,508,433,892.08/2,080,459,495.68 = 979,968,148.80/x - Step 3: Cross multiply
1,508,433,892.08x = 2,080,459,495.68 × 979,968,148.80 - Step 4: Simplify right side
1,508,433,892.08x = 2,038,784,040,634,911,232 - Step 5: Solve for x
x = 2,038,784,040,634,911,232/1,508,433,892.08 - Step 6: Final answer
x = 1,351,589,918.09
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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.