Finding the Fourth Proportional to 7,246,439.80, 10,869,659.70 and 7,246,439.80
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Solution
The fourth proportional to 7,246,439.80, 10,869,659.70 and 7,246,439.80 is: 10,869,659.70
Step by Step Solution
- Step 1: Write the proportion equation
7,246,439.80 : 10,869,659.70 = 7,246,439.80 : x - Step 2: Convert to fraction form
7,246,439.80/10,869,659.70 = 7,246,439.80/x - Step 3: Cross multiply
7,246,439.80x = 10,869,659.70 × 7,246,439.80 - Step 4: Simplify right side
7,246,439.80x = 78,766,334,662,536.05 - Step 5: Solve for x
x = 78,766,334,662,536.05/7,246,439.80 - Step 6: Final answer
x = 10,869,659.70
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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.