Finding the Fourth Proportional to 28,042,444, 38,698,689.36 and 15,165,388
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Solution
The fourth proportional to 28,042,444, 38,698,689.36 and 15,165,388 is: 20,928,298.52
Step by Step Solution
- Step 1: Write the proportion equation
28,042,444 : 38,698,689.36 = 15,165,388 : x - Step 2: Convert to fraction form
28,042,444/38,698,689.36 = 15,165,388/x - Step 3: Cross multiply
28,042,444x = 38,698,689.36 × 15,165,388 - Step 4: Simplify right side
28,042,444x = 586,880,639,235,871.62 - Step 5: Solve for x
x = 586,880,639,235,871.62/28,042,444 - Step 6: Final answer
x = 20,928,298.52
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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.