Finding the Fourth Proportional to 11,615,833.20, 16,029,190.53 and 6,459,083.76
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Solution
The fourth proportional to 11,615,833.20, 16,029,190.53 and 6,459,083.76 is: 8,913,168.99
Step by Step Solution
- Step 1: Write the proportion equation
11,615,833.20 : 16,029,190.53 = 6,459,083.76 : x - Step 2: Convert to fraction form
11,615,833.20/16,029,190.53 = 6,459,083.76/x - Step 3: Cross multiply
11,615,833.20x = 16,029,190.53 × 6,459,083.76 - Step 4: Simplify right side
11,615,833.20x = 103,533,884,238,268.78 - Step 5: Solve for x
x = 103,533,884,238,268.78/11,615,833.20 - Step 6: Final answer
x = 8,913,168.99
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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.