Finding the Fourth Proportional to 190,288,913.80, 285,433,370.70 and 132,893,285.80
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Solution
The fourth proportional to 190,288,913.80, 285,433,370.70 and 132,893,285.80 is: 199,339,928.70
Step by Step Solution
- Step 1: Write the proportion equation
190,288,913.80 : 285,433,370.70 = 132,893,285.80 : x - Step 2: Convert to fraction form
190,288,913.80/285,433,370.70 = 132,893,285.80/x - Step 3: Cross multiply
190,288,913.80x = 285,433,370.70 × 132,893,285.80 - Step 4: Simplify right side
190,288,913.80x = 37,932,178,509,292,440 - Step 5: Solve for x
x = 37,932,178,509,292,440/190,288,913.80 - Step 6: Final answer
x = 199,339,928.70
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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.