Finding the Fourth Proportional to 824,795,545.68, 1,138,209,850.74 and 448,452,128.46
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Solution
The fourth proportional to 824,795,545.68, 1,138,209,850.74 and 448,452,128.46 is: 618,859,586.32
Step by Step Solution
- Step 1: Write the proportion equation
824,795,545.68 : 1,138,209,850.74 = 448,452,128.46 : x - Step 2: Convert to fraction form
824,795,545.68/1,138,209,850.74 = 448,452,128.46/x - Step 3: Cross multiply
824,795,545.68x = 1,138,209,850.74 × 448,452,128.46 - Step 4: Simplify right side
824,795,545.68x = 510,432,630,198,491,904 - Step 5: Solve for x
x = 510,432,630,198,491,904/824,795,545.68 - Step 6: Final answer
x = 618,859,586.32
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Double scale
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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.