Finding the Fourth Proportional to 1,043,565,326.48, 1,440,155,219.28 and 614,325,163.82
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Solution
The fourth proportional to 1,043,565,326.48, 1,440,155,219.28 and 614,325,163.82 is: 847,789,370.31
Step by Step Solution
- Step 1: Write the proportion equation
1,043,565,326.48 : 1,440,155,219.28 = 614,325,163.82 : x - Step 2: Convert to fraction form
1,043,565,326.48/1,440,155,219.28 = 614,325,163.82/x - Step 3: Cross multiply
1,043,565,326.48x = 1,440,155,219.28 × 614,325,163.82 - Step 4: Simplify right side
1,043,565,326.48x = 884,723,591,010,414,080 - Step 5: Solve for x
x = 884,723,591,010,414,080/1,043,565,326.48 - Step 6: Final answer
x = 847,789,370.31
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Double scale
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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.