Finding the Fourth Proportional to 7,099,615.80, 10,649,423.70 and 5,839,903.80
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Solution
The fourth proportional to 7,099,615.80, 10,649,423.70 and 5,839,903.80 is: 8,759,855.70
Step by Step Solution
- Step 1: Write the proportion equation
7,099,615.80 : 10,649,423.70 = 5,839,903.80 : x - Step 2: Convert to fraction form
7,099,615.80/10,649,423.70 = 5,839,903.80/x - Step 3: Cross multiply
7,099,615.80x = 10,649,423.70 × 5,839,903.80 - Step 4: Simplify right side
7,099,615.80x = 62,191,609,933,440.05 - Step 5: Solve for x
x = 62,191,609,933,440.05/7,099,615.80 - Step 6: Final answer
x = 8,759,855.70
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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.