Finding the Fourth Proportional to 11,842,998.66, 16,345,929.60 and 7,497,878.40
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Solution
The fourth proportional to 11,842,998.66, 16,345,929.60 and 7,497,878.40 is: 10,348,712.86
Step by Step Solution
- Step 1: Write the proportion equation
11,842,998.66 : 16,345,929.60 = 7,497,878.40 : x - Step 2: Convert to fraction form
11,842,998.66/16,345,929.60 = 7,497,878.40/x - Step 3: Cross multiply
11,842,998.66x = 16,345,929.60 × 7,497,878.40 - Step 4: Simplify right side
11,842,998.66x = 122,559,792,475,760.64 - Step 5: Solve for x
x = 122,559,792,475,760.64/11,842,998.66 - Step 6: Final answer
x = 10,348,712.86
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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.