Finding the Fourth Proportional to 51,312,394.12, 70,784,257.44 and 31,727,021.80
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Solution
The fourth proportional to 51,312,394.12, 70,784,257.44 and 31,727,021.80 is: 43,766,690.63
Step by Step Solution
- Step 1: Write the proportion equation
51,312,394.12 : 70,784,257.44 = 31,727,021.80 : x - Step 2: Convert to fraction form
51,312,394.12/70,784,257.44 = 31,727,021.80/x - Step 3: Cross multiply
51,312,394.12x = 70,784,257.44 × 31,727,021.80 - Step 4: Simplify right side
51,312,394.12x = 2,245,773,678,895,692.25 - Step 5: Solve for x
x = 2,245,773,678,895,692.25/51,312,394.12 - Step 6: Final answer
x = 43,766,690.63
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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.