Finding the Fourth Proportional to 10,657,207.20, 15,985,810.80 and 10,657,207.20
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Solution
The fourth proportional to 10,657,207.20, 15,985,810.80 and 10,657,207.20 is: 15,985,810.80
Step by Step Solution
- Step 1: Write the proportion equation
10,657,207.20 : 15,985,810.80 = 10,657,207.20 : x - Step 2: Convert to fraction form
10,657,207.20/15,985,810.80 = 10,657,207.20/x - Step 3: Cross multiply
10,657,207.20x = 15,985,810.80 × 10,657,207.20 - Step 4: Simplify right side
10,657,207.20x = 170,364,097,955,597.75 - Step 5: Solve for x
x = 170,364,097,955,597.75/10,657,207.20 - Step 6: Final answer
x = 15,985,810.80
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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.