Finding the Fourth Proportional to 7,183,215.16, 9,913,045.84 and 3,920,239.76
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Solution
The fourth proportional to 7,183,215.16, 9,913,045.84 and 3,920,239.76 is: 5,410,044.89
Step by Step Solution
- Step 1: Write the proportion equation
7,183,215.16 : 9,913,045.84 = 3,920,239.76 : x - Step 2: Convert to fraction form
7,183,215.16/9,913,045.84 = 3,920,239.76/x - Step 3: Cross multiply
7,183,215.16x = 9,913,045.84 × 3,920,239.76 - Step 4: Simplify right side
7,183,215.16x = 38,861,516,444,670.59 - Step 5: Solve for x
x = 38,861,516,444,670.59/7,183,215.16 - Step 6: Final answer
x = 5,410,044.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.