Finding the Fourth Proportional to 1,584,378,645.26, 2,186,332,811.51 and 879,475,106.03
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Solution
The fourth proportional to 1,584,378,645.26, 2,186,332,811.51 and 879,475,106.03 is: 1,213,614,742.26
Step by Step Solution
- Step 1: Write the proportion equation
1,584,378,645.26 : 2,186,332,811.51 = 879,475,106.03 : x - Step 2: Convert to fraction form
1,584,378,645.26/2,186,332,811.51 = 879,475,106.03/x - Step 3: Cross multiply
1,584,378,645.26x = 2,186,332,811.51 × 879,475,106.03 - Step 4: Simplify right side
1,584,378,645.26x = 1,922,825,281,204,296,192 - Step 5: Solve for x
x = 1,922,825,281,204,296,192/1,584,378,645.26 - Step 6: Final answer
x = 1,213,614,742.26
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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.