Finding the Fourth Proportional to 5,212,319.12, 7,812,965.97 and 1,927,562.81
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Solution
The fourth proportional to 5,212,319.12, 7,812,965.97 and 1,927,562.81 is: 2,889,305.56
Step by Step Solution
- Step 1: Write the proportion equation
5,212,319.12 : 7,812,965.97 = 1,927,562.81 : x - Step 2: Convert to fraction form
5,212,319.12/7,812,965.97 = 1,927,562.81/x - Step 3: Cross multiply
5,212,319.12x = 7,812,965.97 × 1,927,562.81 - Step 4: Simplify right side
5,212,319.12x = 15,059,982,600,502.74 - Step 5: Solve for x
x = 15,059,982,600,502.74/5,212,319.12 - Step 6: Final answer
x = 2,889,305.56
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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.