Finding the Fourth Proportional to 57,929,199.20, 79,943,113.70 and 31,826,129.48
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Solution
The fourth proportional to 57,929,199.20, 79,943,113.70 and 31,826,129.48 is: 43,920,508.53
Step by Step Solution
- Step 1: Write the proportion equation
57,929,199.20 : 79,943,113.70 = 31,826,129.48 : x - Step 2: Convert to fraction form
57,929,199.20/79,943,113.70 = 31,826,129.48/x - Step 3: Cross multiply
57,929,199.20x = 79,943,113.70 × 31,826,129.48 - Step 4: Simplify right side
57,929,199.20x = 2,544,279,887,650,562 - Step 5: Solve for x
x = 2,544,279,887,650,562/57,929,199.20 - Step 6: Final answer
x = 43,920,508.53
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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.