Finding the Fourth Proportional to 38,387,260.80, 57,580,891.47 and 12,828,270.24
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Solution
The fourth proportional to 38,387,260.80, 57,580,891.47 and 12,828,270.24 is: 19,242,405.45
Step by Step Solution
- Step 1: Write the proportion equation
38,387,260.80 : 57,580,891.47 = 12,828,270.24 : x - Step 2: Convert to fraction form
38,387,260.80/57,580,891.47 = 12,828,270.24/x - Step 3: Cross multiply
38,387,260.80x = 57,580,891.47 × 12,828,270.24 - Step 4: Simplify right side
38,387,260.80x = 738,663,236,437,270.88 - Step 5: Solve for x
x = 738,663,236,437,270.88/38,387,260.80 - Step 6: Final answer
x = 19,242,405.45
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1.5x scale
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.