Finding the Fourth Proportional to 431,285,399.03, 647,219,184.05 and 168,937,409.09
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Solution
The fourth proportional to 431,285,399.03, 647,219,184.05 and 168,937,409.09 is: 253,520,133.79
Step by Step Solution
- Step 1: Write the proportion equation
431,285,399.03 : 647,219,184.05 = 168,937,409.09 : x - Step 2: Convert to fraction form
431,285,399.03/647,219,184.05 = 168,937,409.09/x - Step 3: Cross multiply
431,285,399.03x = 647,219,184.05 × 168,937,409.09 - Step 4: Simplify right side
431,285,399.03x = 109,339,532,063,937,104 - Step 5: Solve for x
x = 109,339,532,063,937,104/431,285,399.03 - Step 6: Final answer
x = 253,520,133.79
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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.