Finding the Fourth Proportional to 818,385,752.12, 1,227,772,235.08 and 265,687,112.12
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Solution
The fourth proportional to 818,385,752.12, 1,227,772,235.08 and 265,687,112.12 is: 398,593,522.23
Step by Step Solution
- Step 1: Write the proportion equation
818,385,752.12 : 1,227,772,235.08 = 265,687,112.12 : x - Step 2: Convert to fraction form
818,385,752.12/1,227,772,235.08 = 265,687,112.12/x - Step 3: Cross multiply
818,385,752.12x = 1,227,772,235.08 × 265,687,112.12 - Step 4: Simplify right side
818,385,752.12x = 326,203,259,479,522,944 - Step 5: Solve for x
x = 326,203,259,479,522,944/818,385,752.12 - Step 6: Final answer
x = 398,593,522.23
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.