Finding the Fourth Proportional to 10,128,541.11, 13,977,387.20 and 5,544,862.48
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Solution
The fourth proportional to 10,128,541.11, 13,977,387.20 and 5,544,862.48 is: 7,651,910.48
Step by Step Solution
- Step 1: Write the proportion equation
10,128,541.11 : 13,977,387.20 = 5,544,862.48 : x - Step 2: Convert to fraction form
10,128,541.11/13,977,387.20 = 5,544,862.48/x - Step 3: Cross multiply
10,128,541.11x = 13,977,387.20 × 5,544,862.48 - Step 4: Simplify right side
10,128,541.11x = 77,502,689,853,712.27 - Step 5: Solve for x
x = 77,502,689,853,712.27/10,128,541.11 - Step 6: Final answer
x = 7,651,910.48
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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.