Finding the Fourth Proportional to 689,674,654.51, 1,033,613,737.12 and 280,252,158.19
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Solution
The fourth proportional to 689,674,654.51, 1,033,613,737.12 and 280,252,158.19 is: 420,013,231.84
Step by Step Solution
- Step 1: Write the proportion equation
689,674,654.51 : 1,033,613,737.12 = 280,252,158.19 : x - Step 2: Convert to fraction form
689,674,654.51/1,033,613,737.12 = 280,252,158.19/x - Step 3: Cross multiply
689,674,654.51x = 1,033,613,737.12 × 280,252,158.19 - Step 4: Simplify right side
689,674,654.51x = 289,672,480,560,491,584 - Step 5: Solve for x
x = 289,672,480,560,491,584/689,674,654.51 - Step 6: Final answer
x = 420,013,231.84
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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.