Finding the Fourth Proportional to 7,664,499.20, 11,486,980.20 and 4,071,987.20
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Solution
The fourth proportional to 7,664,499.20, 11,486,980.20 and 4,071,987.20 is: 6,102,790.95
Step by Step Solution
- Step 1: Write the proportion equation
7,664,499.20 : 11,486,980.20 = 4,071,987.20 : x - Step 2: Convert to fraction form
7,664,499.20/11,486,980.20 = 4,071,987.20/x - Step 3: Cross multiply
7,664,499.20x = 11,486,980.20 × 4,071,987.20 - Step 4: Simplify right side
7,664,499.20x = 46,774,836,341,053.44 - Step 5: Solve for x
x = 46,774,836,341,053.44/7,664,499.20 - Step 6: Final answer
x = 6,102,790.95
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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.