Finding the Fourth Proportional to 7,772,957.64, 11,660,930.91 and 2,980,273.12
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Solution
The fourth proportional to 7,772,957.64, 11,660,930.91 and 2,980,273.12 is: 4,470,982.68
Step by Step Solution
- Step 1: Write the proportion equation
7,772,957.64 : 11,660,930.91 = 2,980,273.12 : x - Step 2: Convert to fraction form
7,772,957.64/11,660,930.91 = 2,980,273.12/x - Step 3: Cross multiply
7,772,957.64x = 11,660,930.91 × 2,980,273.12 - Step 4: Simplify right side
7,772,957.64x = 34,752,758,948,893.02 - Step 5: Solve for x
x = 34,752,758,948,893.02/7,772,957.64 - Step 6: Final answer
x = 4,470,982.68
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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.