Finding the Fourth Proportional to 7,828,013.80, 11,743,189.98 and 2,778,901.48
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Solution
The fourth proportional to 7,828,013.80, 11,743,189.98 and 2,778,901.48 is: 4,168,767.31
Step by Step Solution
- Step 1: Write the proportion equation
7,828,013.80 : 11,743,189.98 = 2,778,901.48 : x - Step 2: Convert to fraction form
7,828,013.80/11,743,189.98 = 2,778,901.48/x - Step 3: Cross multiply
7,828,013.80x = 11,743,189.98 × 2,778,901.48 - Step 4: Simplify right side
7,828,013.80x = 32,633,168,015,343.17 - Step 5: Solve for x
x = 32,633,168,015,343.17/7,828,013.80 - Step 6: Final answer
x = 4,168,767.31
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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.