Finding the Fourth Proportional to 28,485,737.28, 39,310,264.26 and 15,433,320.60
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Solution
The fourth proportional to 28,485,737.28, 39,310,264.26 and 15,433,320.60 is: 21,297,953.61
Step by Step Solution
- Step 1: Write the proportion equation
28,485,737.28 : 39,310,264.26 = 15,433,320.60 : x - Step 2: Convert to fraction form
28,485,737.28/39,310,264.26 = 15,433,320.60/x - Step 3: Cross multiply
28,485,737.28x = 39,310,264.26 × 15,433,320.60 - Step 4: Simplify right side
28,485,737.28x = 606,687,911,195,301.75 - Step 5: Solve for x
x = 606,687,911,195,301.75/28,485,737.28 - Step 6: Final answer
x = 21,297,953.61
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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.