Finding the Fourth Proportional to 28,472,342.40, 39,292,551.63 and 17,465,161.68
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Solution
The fourth proportional to 28,472,342.40, 39,292,551.63 and 17,465,161.68 is: 24,102,364.23
Step by Step Solution
- Step 1: Write the proportion equation
28,472,342.40 : 39,292,551.63 = 17,465,161.68 : x - Step 2: Convert to fraction form
28,472,342.40/39,292,551.63 = 17,465,161.68/x - Step 3: Cross multiply
28,472,342.40x = 39,292,551.63 × 17,465,161.68 - Step 4: Simplify right side
28,472,342.40x = 686,250,767,037,697.62 - Step 5: Solve for x
x = 686,250,767,037,697.62/28,472,342.40 - Step 6: Final answer
x = 24,102,364.23
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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.