Finding the Fourth Proportional to 208,593,138.30, 312,889,707.45 and 93,581,432.70
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Solution
The fourth proportional to 208,593,138.30, 312,889,707.45 and 93,581,432.70 is: 140,372,149.05
Step by Step Solution
- Step 1: Write the proportion equation
208,593,138.30 : 312,889,707.45 = 93,581,432.70 : x - Step 2: Convert to fraction form
208,593,138.30/312,889,707.45 = 93,581,432.70/x - Step 3: Cross multiply
208,593,138.30x = 312,889,707.45 × 93,581,432.70 - Step 4: Simplify right side
208,593,138.30x = 29,280,667,100,254,864 - Step 5: Solve for x
x = 29,280,667,100,254,864/208,593,138.30 - Step 6: Final answer
x = 140,372,149.05
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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.