Finding the Fourth Proportional to 7,769,091,544.80, 11,653,637,317.20 and 6,871,168,831.20
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Solution
The fourth proportional to 7,769,091,544.80, 11,653,637,317.20 and 6,871,168,831.20 is: 10,306,753,246.80
Step by Step Solution
- Step 1: Write the proportion equation
7,769,091,544.80 : 11,653,637,317.20 = 6,871,168,831.20 : x - Step 2: Convert to fraction form
7,769,091,544.80/11,653,637,317.20 = 6,871,168,831.20/x - Step 3: Cross multiply
7,769,091,544.80x = 11,653,637,317.20 × 6,871,168,831.20 - Step 4: Simplify right side
7,769,091,544.80x = 80,074,109,504,053,837,824 - Step 5: Solve for x
x = 80,074,109,504,053,837,824/7,769,091,544.80 - Step 6: Final answer
x = 10,306,753,246.80
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1.5x scale
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.