Finding the Fourth Proportional to 79,930,406.31, 110,306,634.62 and 48,984,599.31
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Solution
The fourth proportional to 79,930,406.31, 110,306,634.62 and 48,984,599.31 is: 67,600,385.73
Step by Step Solution
- Step 1: Write the proportion equation
79,930,406.31 : 110,306,634.62 = 48,984,599.31 : x - Step 2: Convert to fraction form
79,930,406.31/110,306,634.62 = 48,984,599.31/x - Step 3: Cross multiply
79,930,406.31x = 110,306,634.62 × 48,984,599.31 - Step 4: Simplify right side
79,930,406.31x = 5,403,326,297,850,351 - Step 5: Solve for x
x = 5,403,326,297,850,351/79,930,406.31 - Step 6: Final answer
x = 67,600,385.73
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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.