Finding the Fourth Proportional to 38,042,378.97, 52,503,435.09 and 21,303,493.71
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Solution
The fourth proportional to 38,042,378.97, 52,503,435.09 and 21,303,493.71 is: 29,401,594.47
Step by Step Solution
- Step 1: Write the proportion equation
38,042,378.97 : 52,503,435.09 = 21,303,493.71 : x - Step 2: Convert to fraction form
38,042,378.97/52,503,435.09 = 21,303,493.71/x - Step 3: Cross multiply
38,042,378.97x = 52,503,435.09 × 21,303,493.71 - Step 4: Simplify right side
38,042,378.97x = 1,118,506,599,193,208.38 - Step 5: Solve for x
x = 1,118,506,599,193,208.38/38,042,378.97 - Step 6: Final answer
x = 29,401,594.47
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1.5x scale
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.