Finding the Fourth Proportional to 7,769,664.79, 10,722,206.73 and 4,285,138.35
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Solution
The fourth proportional to 7,769,664.79, 10,722,206.73 and 4,285,138.35 is: 5,913,529.15
Step by Step Solution
- Step 1: Write the proportion equation
7,769,664.79 : 10,722,206.73 = 4,285,138.35 : x - Step 2: Convert to fraction form
7,769,664.79/10,722,206.73 = 4,285,138.35/x - Step 3: Cross multiply
7,769,664.79x = 10,722,206.73 × 4,285,138.35 - Step 4: Simplify right side
7,769,664.79x = 45,946,139,255,351.09 - Step 5: Solve for x
x = 45,946,139,255,351.09/7,769,664.79 - Step 6: Final answer
x = 5,913,529.15
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1.5x scale
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.