Finding the Fourth Proportional to 6,409,644.60, 8,845,415.02 and 3,508,987.62
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Solution
The fourth proportional to 6,409,644.60, 8,845,415.02 and 3,508,987.62 is: 4,842,460.66
Step by Step Solution
- Step 1: Write the proportion equation
6,409,644.60 : 8,845,415.02 = 3,508,987.62 : x - Step 2: Convert to fraction form
6,409,644.60/8,845,415.02 = 3,508,987.62/x - Step 3: Cross multiply
6,409,644.60x = 8,845,415.02 × 3,508,987.62 - Step 4: Simplify right side
6,409,644.60x = 31,038,451,798,942.05 - Step 5: Solve for x
x = 31,038,451,798,942.05/6,409,644.60 - Step 6: Final answer
x = 4,842,460.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.