Finding the Fourth Proportional to 10,651,973.40, 15,977,960.10 and 6,613,021.80
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Solution
The fourth proportional to 10,651,973.40, 15,977,960.10 and 6,613,021.80 is: 9,919,532.70
Step by Step Solution
- Step 1: Write the proportion equation
10,651,973.40 : 15,977,960.10 = 6,613,021.80 : x - Step 2: Convert to fraction form
10,651,973.40/15,977,960.10 = 6,613,021.80/x - Step 3: Cross multiply
10,651,973.40x = 15,977,960.10 × 6,613,021.80 - Step 4: Simplify right side
10,651,973.40x = 105,662,598,460,830.17 - Step 5: Solve for x
x = 105,662,598,460,830.17/10,651,973.40 - Step 6: Final answer
x = 9,919,532.70
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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.