Finding the Fourth Proportional to 28,041,718.95, 38,718,072.36 and 18,124,470.14
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Solution
The fourth proportional to 28,041,718.95, 38,718,072.36 and 18,124,470.14 is: 25,025,018.88
Step by Step Solution
- Step 1: Write the proportion equation
28,041,718.95 : 38,718,072.36 = 18,124,470.14 : x - Step 2: Convert to fraction form
28,041,718.95/38,718,072.36 = 18,124,470.14/x - Step 3: Cross multiply
28,041,718.95x = 38,718,072.36 × 18,124,470.14 - Step 4: Simplify right side
28,041,718.95x = 701,744,546,173,589 - Step 5: Solve for x
x = 701,744,546,173,589/28,041,718.95 - Step 6: Final answer
x = 25,025,018.88
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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.