Finding the Fourth Proportional to 10,128,490.26, 13,977,316.14 and 5,544,811.62
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Solution
The fourth proportional to 10,128,490.26, 13,977,316.14 and 5,544,811.62 is: 7,651,839.81
Step by Step Solution
- Step 1: Write the proportion equation
10,128,490.26 : 13,977,316.14 = 5,544,811.62 : x - Step 2: Convert to fraction form
10,128,490.26/13,977,316.14 = 5,544,811.62/x - Step 3: Cross multiply
10,128,490.26x = 13,977,316.14 × 5,544,811.62 - Step 4: Simplify right side
10,128,490.26x = 77,501,584,949,485.55 - Step 5: Solve for x
x = 77,501,584,949,485.55/10,128,490.26 - Step 6: Final answer
x = 7,651,839.81
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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.