Finding the Fourth Proportional to 39,929,470.54, 55,102,706.09 and 21,594,756.04
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Solution
The fourth proportional to 39,929,470.54, 55,102,706.09 and 21,594,756.04 is: 29,800,783.21
Step by Step Solution
- Step 1: Write the proportion equation
39,929,470.54 : 55,102,706.09 = 21,594,756.04 : x - Step 2: Convert to fraction form
39,929,470.54/55,102,706.09 = 21,594,756.04/x - Step 3: Cross multiply
39,929,470.54x = 55,102,706.09 × 21,594,756.04 - Step 4: Simplify right side
39,929,470.54x = 1,189,929,495,157,372.25 - Step 5: Solve for x
x = 1,189,929,495,157,372.25/39,929,470.54 - Step 6: Final answer
x = 29,800,783.21
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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.