Finding the Fourth Proportional to 80,243,888.68, 110,734,984.74 and 47,207,708.20
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Solution
The fourth proportional to 80,243,888.68, 110,734,984.74 and 47,207,708.20 is: 65,145,706.83
Step by Step Solution
- Step 1: Write the proportion equation
80,243,888.68 : 110,734,984.74 = 47,207,708.20 : x - Step 2: Convert to fraction form
80,243,888.68/110,734,984.74 = 47,207,708.20/x - Step 3: Cross multiply
80,243,888.68x = 110,734,984.74 × 47,207,708.20 - Step 4: Simplify right side
80,243,888.68x = 5,227,544,847,137,373 - Step 5: Solve for x
x = 5,227,544,847,137,373/80,243,888.68 - Step 6: Final answer
x = 65,145,706.83
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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.