Finding the Fourth Proportional to 10,389,615.80, 15,584,423.70 and 4,720,911.80
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Solution
The fourth proportional to 10,389,615.80, 15,584,423.70 and 4,720,911.80 is: 7,081,367.70
Step by Step Solution
- Step 1: Write the proportion equation
10,389,615.80 : 15,584,423.70 = 4,720,911.80 : x - Step 2: Convert to fraction form
10,389,615.80/15,584,423.70 = 4,720,911.80/x - Step 3: Cross multiply
10,389,615.80x = 15,584,423.70 × 4,720,911.80 - Step 4: Simplify right side
10,389,615.80x = 73,572,689,741,529.66 - Step 5: Solve for x
x = 73,572,689,741,529.66/10,389,615.80 - Step 6: Final answer
x = 7,081,367.70
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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.