Finding the Fourth Proportional to 28,623,160.87, 39,499,932.12 and 15,570,388.65
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Solution
The fourth proportional to 28,623,160.87, 39,499,932.12 and 15,570,388.65 is: 21,487,120.08
Step by Step Solution
- Step 1: Write the proportion equation
28,623,160.87 : 39,499,932.12 = 15,570,388.65 : x - Step 2: Convert to fraction form
28,623,160.87/39,499,932.12 = 15,570,388.65/x - Step 3: Cross multiply
28,623,160.87x = 39,499,932.12 × 15,570,388.65 - Step 4: Simplify right side
28,623,160.87x = 615,029,294,846,754.25 - Step 5: Solve for x
x = 615,029,294,846,754.25/28,623,160.87 - Step 6: Final answer
x = 21,487,120.08
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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.