Finding the Fourth Proportional to 381,986,502.26, 572,979,038.21 and 119,691,133.15
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Solution
The fourth proportional to 381,986,502.26, 572,979,038.21 and 119,691,133.15 is: 179,536,475.63
Step by Step Solution
- Step 1: Write the proportion equation
381,986,502.26 : 572,979,038.21 = 119,691,133.15 : x - Step 2: Convert to fraction form
381,986,502.26/572,979,038.21 = 119,691,133.15/x - Step 3: Cross multiply
381,986,502.26x = 572,979,038.21 × 119,691,133.15 - Step 4: Simplify right side
381,986,502.26x = 68,580,510,354,712,920 - Step 5: Solve for x
x = 68,580,510,354,712,920/381,986,502.26 - Step 6: Final answer
x = 179,536,475.63
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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.