Finding the Fourth Proportional to 31,439,898.21, 47,159,847.36 and 8,720,795.46
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Solution
The fourth proportional to 31,439,898.21, 47,159,847.36 and 8,720,795.46 is: 13,081,193.20
Step by Step Solution
- Step 1: Write the proportion equation
31,439,898.21 : 47,159,847.36 = 8,720,795.46 : x - Step 2: Convert to fraction form
31,439,898.21/47,159,847.36 = 8,720,795.46/x - Step 3: Cross multiply
31,439,898.21x = 47,159,847.36 × 8,720,795.46 - Step 4: Simplify right side
31,439,898.21x = 411,271,382,751,381 - Step 5: Solve for x
x = 411,271,382,751,381/31,439,898.21 - Step 6: Final answer
x = 13,081,193.20
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.