Finding the Fourth Proportional to 1,052,130,913.74, 1,451,964,351.42 and 681,498,055.44
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Solution
The fourth proportional to 1,052,130,913.74, 1,451,964,351.42 and 681,498,055.44 is: 940,482,661.56
Step by Step Solution
- Step 1: Write the proportion equation
1,052,130,913.74 : 1,451,964,351.42 = 681,498,055.44 : x - Step 2: Convert to fraction form
1,052,130,913.74/1,451,964,351.42 = 681,498,055.44/x - Step 3: Cross multiply
1,052,130,913.74x = 1,451,964,351.42 × 681,498,055.44 - Step 4: Simplify right side
1,052,130,913.74x = 989,510,882,060,930,944 - Step 5: Solve for x
x = 989,510,882,060,930,944/1,052,130,913.74 - Step 6: Final answer
x = 940,482,661.56
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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.