Finding the Fourth Proportional to 32,920,072.64, 45,430,063.62 and 18,235,963.88
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Solution
The fourth proportional to 32,920,072.64, 45,430,063.62 and 18,235,963.88 is: 25,165,831.45
Step by Step Solution
- Step 1: Write the proportion equation
32,920,072.64 : 45,430,063.62 = 18,235,963.88 : x - Step 2: Convert to fraction form
32,920,072.64/45,430,063.62 = 18,235,963.88/x - Step 3: Cross multiply
32,920,072.64x = 45,430,063.62 × 18,235,963.88 - Step 4: Simplify right side
32,920,072.64x = 828,460,999,240,422 - Step 5: Solve for x
x = 828,460,999,240,422/32,920,072.64 - Step 6: Final answer
x = 25,165,831.45
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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.