Finding the Fourth Proportional to 28,610,407.59, 39,481,161.09 and 16,221,334.68
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Solution
The fourth proportional to 28,610,407.59, 39,481,161.09 and 16,221,334.68 is: 22,384,760.71
Step by Step Solution
- Step 1: Write the proportion equation
28,610,407.59 : 39,481,161.09 = 16,221,334.68 : x - Step 2: Convert to fraction form
28,610,407.59/39,481,161.09 = 16,221,334.68/x - Step 3: Cross multiply
28,610,407.59x = 39,481,161.09 × 16,221,334.68 - Step 4: Simplify right side
28,610,407.59x = 640,437,127,595,883.62 - Step 5: Solve for x
x = 640,437,127,595,883.62/28,610,407.59 - Step 6: Final answer
x = 22,384,760.71
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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.