Finding the Fourth Proportional to 31,702,885.44, 47,539,339.69 and 12,281,208.02
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Solution
The fourth proportional to 31,702,885.44, 47,539,339.69 and 12,281,208.02 is: 18,416,005.72
Step by Step Solution
- Step 1: Write the proportion equation
31,702,885.44 : 47,539,339.69 = 12,281,208.02 : x - Step 2: Convert to fraction form
31,702,885.44/47,539,339.69 = 12,281,208.02/x - Step 3: Cross multiply
31,702,885.44x = 47,539,339.69 × 12,281,208.02 - Step 4: Simplify right side
31,702,885.44x = 583,840,519,567,229.62 - Step 5: Solve for x
x = 583,840,519,567,229.62/31,702,885.44 - Step 6: Final answer
x = 18,416,005.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.