Finding the Fourth Proportional to 7,666,220.99, 11,487,971.39 and 3,111,727.88
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Solution
The fourth proportional to 7,666,220.99, 11,487,971.39 and 3,111,727.88 is: 4,662,980.74
Step by Step Solution
- Step 1: Write the proportion equation
7,666,220.99 : 11,487,971.39 = 3,111,727.88 : x - Step 2: Convert to fraction form
7,666,220.99/11,487,971.39 = 3,111,727.88/x - Step 3: Cross multiply
7,666,220.99x = 11,487,971.39 × 3,111,727.88 - Step 4: Simplify right side
7,666,220.99x = 35,747,440,858,905.35 - Step 5: Solve for x
x = 35,747,440,858,905.35/7,666,220.99 - Step 6: Final answer
x = 4,662,980.74
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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.