Finding the Fourth Proportional to 1,353,942,218.26, 1,868,442,459.24 and 751,112,856.96
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Solution
The fourth proportional to 1,353,942,218.26, 1,868,442,459.24 and 751,112,856.96 is: 1,036,536,961.99
Step by Step Solution
- Step 1: Write the proportion equation
1,353,942,218.26 : 1,868,442,459.24 = 751,112,856.96 : x - Step 2: Convert to fraction form
1,353,942,218.26/1,868,442,459.24 = 751,112,856.96/x - Step 3: Cross multiply
1,353,942,218.26x = 1,868,442,459.24 × 751,112,856.96 - Step 4: Simplify right side
1,353,942,218.26x = 1,403,411,153,615,782,656 - Step 5: Solve for x
x = 1,403,411,153,615,782,656/1,353,942,218.26 - Step 6: Final answer
x = 1,036,536,961.99
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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.