Finding the Fourth Proportional to 7,899,471,347.05, 11,847,393,802.96 and 4,709,642,475.63
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Solution
The fourth proportional to 7,899,471,347.05, 11,847,393,802.96 and 4,709,642,475.63 is: 7,063,382,678.23
Step by Step Solution
- Step 1: Write the proportion equation
7,899,471,347.05 : 11,847,393,802.96 = 4,709,642,475.63 : x - Step 2: Convert to fraction form
7,899,471,347.05/11,847,393,802.96 = 4,709,642,475.63/x - Step 3: Cross multiply
7,899,471,347.05x = 11,847,393,802.96 × 4,709,642,475.63 - Step 4: Simplify right side
7,899,471,347.05x = 55,796,989,079,970,480,128 - Step 5: Solve for x
x = 55,796,989,079,970,480,128/7,899,471,347.05 - Step 6: Final answer
x = 7,063,382,678.23
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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.