Finding the Fourth Proportional to 72,124,995.92, 107,928,890.16 and 62,442,912.08
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Solution
The fourth proportional to 72,124,995.92, 107,928,890.16 and 62,442,912.08 is: 93,440,479.45
Step by Step Solution
- Step 1: Write the proportion equation
72,124,995.92 : 107,928,890.16 = 62,442,912.08 : x - Step 2: Convert to fraction form
72,124,995.92/107,928,890.16 = 62,442,912.08/x - Step 3: Cross multiply
72,124,995.92x = 107,928,890.16 × 62,442,912.08 - Step 4: Simplify right side
72,124,995.92x = 6,739,394,199,152,857 - Step 5: Solve for x
x = 6,739,394,199,152,857/72,124,995.92 - Step 6: Final answer
x = 93,440,479.45
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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.