Finding the Fourth Proportional to 687,197,843.46, 948,325,052.34 and 373,926,659.99
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Solution
The fourth proportional to 687,197,843.46, 948,325,052.34 and 373,926,659.99 is: 516,014,453.15
Step by Step Solution
- Step 1: Write the proportion equation
687,197,843.46 : 948,325,052.34 = 373,926,659.99 : x - Step 2: Convert to fraction form
687,197,843.46/948,325,052.34 = 373,926,659.99/x - Step 3: Cross multiply
687,197,843.46x = 948,325,052.34 × 373,926,659.99 - Step 4: Simplify right side
687,197,843.46x = 354,604,019,401,596,544 - Step 5: Solve for x
x = 354,604,019,401,596,544/687,197,843.46 - Step 6: Final answer
x = 516,014,453.15
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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.