Finding the Fourth Proportional to 11,257,634.13, 15,537,202.68 and 7,128,049.20
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Solution
The fourth proportional to 11,257,634.13, 15,537,202.68 and 7,128,049.20 is: 9,837,763.77
Step by Step Solution
- Step 1: Write the proportion equation
11,257,634.13 : 15,537,202.68 = 7,128,049.20 : x - Step 2: Convert to fraction form
11,257,634.13/15,537,202.68 = 7,128,049.20/x - Step 3: Cross multiply
11,257,634.13x = 15,537,202.68 × 7,128,049.20 - Step 4: Simplify right side
11,257,634.13x = 110,749,945,133,411.86 - Step 5: Solve for x
x = 110,749,945,133,411.86/11,257,634.13 - Step 6: Final answer
x = 9,837,763.77
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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.