Finding the Fourth Proportional to 384,024,325.78, 529,784,689.26 and 225,173,366.80
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Solution
The fourth proportional to 384,024,325.78, 529,784,689.26 and 225,173,366.80 is: 310,640,222.90
Step by Step Solution
- Step 1: Write the proportion equation
384,024,325.78 : 529,784,689.26 = 225,173,366.80 : x - Step 2: Convert to fraction form
384,024,325.78/529,784,689.26 = 225,173,366.80/x - Step 3: Cross multiply
384,024,325.78x = 529,784,689.26 × 225,173,366.80 - Step 4: Simplify right side
384,024,325.78x = 119,293,402,159,766,000 - Step 5: Solve for x
x = 119,293,402,159,766,000/384,024,325.78 - Step 6: Final answer
x = 310,640,222.90
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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.