Finding the Fourth Proportional to 1,370,336,347.99, 1,891,015,229.94 and 775,608,062.88
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Solution
The fourth proportional to 1,370,336,347.99, 1,891,015,229.94 and 775,608,062.88 is: 1,070,311,432.32
Step by Step Solution
- Step 1: Write the proportion equation
1,370,336,347.99 : 1,891,015,229.94 = 775,608,062.88 : x - Step 2: Convert to fraction form
1,370,336,347.99/1,891,015,229.94 = 775,608,062.88/x - Step 3: Cross multiply
1,370,336,347.99x = 1,891,015,229.94 × 775,608,062.88 - Step 4: Simplify right side
1,370,336,347.99x = 1,466,686,659,374,484,992 - Step 5: Solve for x
x = 1,466,686,659,374,484,992/1,370,336,347.99 - Step 6: Final answer
x = 1,070,311,432.32
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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.