Finding the Fourth Proportional to 79,042,953.20, 118,564,429.80 and 53,496,201.20
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Solution
The fourth proportional to 79,042,953.20, 118,564,429.80 and 53,496,201.20 is: 80,244,301.80
Step by Step Solution
- Step 1: Write the proportion equation
79,042,953.20 : 118,564,429.80 = 53,496,201.20 : x - Step 2: Convert to fraction form
79,042,953.20/118,564,429.80 = 53,496,201.20/x - Step 3: Cross multiply
79,042,953.20x = 118,564,429.80 × 53,496,201.20 - Step 4: Simplify right side
79,042,953.20x = 6,342,746,591,744,076 - Step 5: Solve for x
x = 6,342,746,591,744,076/79,042,953.20 - Step 6: Final answer
x = 80,244,301.80
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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.