Finding the Fourth Proportional to 1,619,718,135.76, 2,235,199,899.30 and 877,145,205.52
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Solution
The fourth proportional to 1,619,718,135.76, 2,235,199,899.30 and 877,145,205.52 is: 1,210,454,357.31
Step by Step Solution
- Step 1: Write the proportion equation
1,619,718,135.76 : 2,235,199,899.30 = 877,145,205.52 : x - Step 2: Convert to fraction form
1,619,718,135.76/2,235,199,899.30 = 877,145,205.52/x - Step 3: Cross multiply
1,619,718,135.76x = 2,235,199,899.30 × 877,145,205.52 - Step 4: Simplify right side
1,619,718,135.76x = 1,960,594,875,049,782,016 - Step 5: Solve for x
x = 1,960,594,875,049,782,016/1,619,718,135.76 - Step 6: Final answer
x = 1,210,454,357.31
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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.