Finding the Fourth Proportional to 39,546,572.80, 59,319,859.20 and 31,053,107.20
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Solution
The fourth proportional to 39,546,572.80, 59,319,859.20 and 31,053,107.20 is: 46,579,660.80
Step by Step Solution
- Step 1: Write the proportion equation
39,546,572.80 : 59,319,859.20 = 31,053,107.20 : x - Step 2: Convert to fraction form
39,546,572.80/59,319,859.20 = 31,053,107.20/x - Step 3: Cross multiply
39,546,572.80x = 59,319,859.20 × 31,053,107.20 - Step 4: Simplify right side
39,546,572.80x = 1,842,065,946,826,506.25 - Step 5: Solve for x
x = 1,842,065,946,826,506.25/39,546,572.80 - Step 6: Final answer
x = 46,579,660.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.