Finding the Fourth Proportional to 6,455,619.20, 9,684,811.20 and 1,968,348.80
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Solution
The fourth proportional to 6,455,619.20, 9,684,811.20 and 1,968,348.80 is: 2,952,944.70
Step by Step Solution
- Step 1: Write the proportion equation
6,455,619.20 : 9,684,811.20 = 1,968,348.80 : x - Step 2: Convert to fraction form
6,455,619.20/9,684,811.20 = 1,968,348.80/x - Step 3: Cross multiply
6,455,619.20x = 9,684,811.20 × 1,968,348.80 - Step 4: Simplify right side
6,455,619.20x = 19,063,086,503,746.56 - Step 5: Solve for x
x = 19,063,086,503,746.56/6,455,619.20 - Step 6: Final answer
x = 2,952,944.70
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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.