Finding the Fourth Proportional to 13,253,615.80, 19,880,423.70 and 6,876,323.80
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Solution
The fourth proportional to 13,253,615.80, 19,880,423.70 and 6,876,323.80 is: 10,314,485.70
Step by Step Solution
- Step 1: Write the proportion equation
13,253,615.80 : 19,880,423.70 = 6,876,323.80 : x - Step 2: Convert to fraction form
13,253,615.80/19,880,423.70 = 6,876,323.80/x - Step 3: Cross multiply
13,253,615.80x = 19,880,423.70 × 6,876,323.80 - Step 4: Simplify right side
13,253,615.80x = 136,704,230,642,394.05 - Step 5: Solve for x
x = 136,704,230,642,394.05/13,253,615.80 - Step 6: Final answer
x = 10,314,485.70
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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.