Finding the Fourth Proportional to 10,128,489.26, 13,977,314.76 and 5,544,810.62
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Solution
The fourth proportional to 10,128,489.26, 13,977,314.76 and 5,544,810.62 is: 7,651,838.43
Step by Step Solution
- Step 1: Write the proportion equation
10,128,489.26 : 13,977,314.76 = 5,544,810.62 : x - Step 2: Convert to fraction form
10,128,489.26/13,977,314.76 = 5,544,810.62/x - Step 3: Cross multiply
10,128,489.26x = 13,977,314.76 × 5,544,810.62 - Step 4: Simplify right side
10,128,489.26x = 77,501,563,320,330.75 - Step 5: Solve for x
x = 77,501,563,320,330.75/10,128,489.26 - Step 6: Final answer
x = 7,651,838.43
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.