Finding the Fourth Proportional to 431,285,364.24, 647,219,131.84 and 168,937,374.12
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Solution
The fourth proportional to 431,285,364.24, 647,219,131.84 and 168,937,374.12 is: 253,520,081.32
Step by Step Solution
- Step 1: Write the proportion equation
431,285,364.24 : 647,219,131.84 = 168,937,374.12 : x - Step 2: Convert to fraction form
431,285,364.24/647,219,131.84 = 168,937,374.12/x - Step 3: Cross multiply
431,285,364.24x = 647,219,131.84 × 168,937,374.12 - Step 4: Simplify right side
431,285,364.24x = 109,339,500,613,275,696 - Step 5: Solve for x
x = 109,339,500,613,275,696/431,285,364.24 - Step 6: Final answer
x = 253,520,081.32
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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.