Finding the Fourth Proportional to 384,481,572.60, 576,722,358.90 and 125,722,949.70
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Solution
The fourth proportional to 384,481,572.60, 576,722,358.90 and 125,722,949.70 is: 188,584,424.55
Step by Step Solution
- Step 1: Write the proportion equation
384,481,572.60 : 576,722,358.90 = 125,722,949.70 : x - Step 2: Convert to fraction form
384,481,572.60/576,722,358.90 = 125,722,949.70/x - Step 3: Cross multiply
384,481,572.60x = 576,722,358.90 × 125,722,949.70 - Step 4: Simplify right side
384,481,572.60x = 72,507,236,118,850,048 - Step 5: Solve for x
x = 72,507,236,118,850,048/384,481,572.60 - Step 6: Final answer
x = 188,584,424.55
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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.