Finding the Fourth Proportional to 7,885,564.80, 11,827,472.40 and 2,206,363.20
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Solution
The fourth proportional to 7,885,564.80, 11,827,472.40 and 2,206,363.20 is: 3,309,300.03
Step by Step Solution
- Step 1: Write the proportion equation
7,885,564.80 : 11,827,472.40 = 2,206,363.20 : x - Step 2: Convert to fraction form
7,885,564.80/11,827,472.40 = 2,206,363.20/x - Step 3: Cross multiply
7,885,564.80x = 11,827,472.40 × 2,206,363.20 - Step 4: Simplify right side
7,885,564.80x = 26,095,699,852,375.68 - Step 5: Solve for x
x = 26,095,699,852,375.68/7,885,564.80 - Step 6: Final answer
x = 3,309,300.03
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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.