Finding the Fourth Proportional to 257,821,233.44, 355,793,340.53 and 140,347,455.49
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Solution
The fourth proportional to 257,821,233.44, 355,793,340.53 and 140,347,455.49 is: 193,679,509.47
Step by Step Solution
- Step 1: Write the proportion equation
257,821,233.44 : 355,793,340.53 = 140,347,455.49 : x - Step 2: Convert to fraction form
257,821,233.44/355,793,340.53 = 140,347,455.49/x - Step 3: Cross multiply
257,821,233.44x = 355,793,340.53 × 140,347,455.49 - Step 4: Simplify right side
257,821,233.44x = 49,934,690,023,672,584 - Step 5: Solve for x
x = 49,934,690,023,672,584/257,821,233.44 - Step 6: Final answer
x = 193,679,509.47
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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.