Finding the Fourth Proportional to 5,430,206.40, 8,149,902.30 and 2,237,623.80
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Solution
The fourth proportional to 5,430,206.40, 8,149,902.30 and 2,237,623.80 is: 3,358,328.21
Step by Step Solution
- Step 1: Write the proportion equation
5,430,206.40 : 8,149,902.30 = 2,237,623.80 : x - Step 2: Convert to fraction form
5,430,206.40/8,149,902.30 = 2,237,623.80/x - Step 3: Cross multiply
5,430,206.40x = 8,149,902.30 × 2,237,623.80 - Step 4: Simplify right side
5,430,206.40x = 18,236,415,354,154.74 - Step 5: Solve for x
x = 18,236,415,354,154.74/5,430,206.40 - Step 6: Final answer
x = 3,358,328.21
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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.