Finding the Fourth Proportional to 7,838,800.72, 11,758,319.24 and 2,721,393.11
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Solution
The fourth proportional to 7,838,800.72, 11,758,319.24 and 2,721,393.11 is: 4,082,130.69
Step by Step Solution
- Step 1: Write the proportion equation
7,838,800.72 : 11,758,319.24 = 2,721,393.11 : x - Step 2: Convert to fraction form
7,838,800.72/11,758,319.24 = 2,721,393.11/x - Step 3: Cross multiply
7,838,800.72x = 11,758,319.24 × 2,721,393.11 - Step 4: Simplify right side
7,838,800.72x = 31,999,008,980,705.27 - Step 5: Solve for x
x = 31,999,008,980,705.27/7,838,800.72 - Step 6: Final answer
x = 4,082,130.69
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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.