Finding the Fourth Proportional to 1,726,277,206.40, 2,589,415,809.60 and 988,589,859.20
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Solution
The fourth proportional to 1,726,277,206.40, 2,589,415,809.60 and 988,589,859.20 is: 1,482,884,788.80
Step by Step Solution
- Step 1: Write the proportion equation
1,726,277,206.40 : 2,589,415,809.60 = 988,589,859.20 : x - Step 2: Convert to fraction form
1,726,277,206.40/2,589,415,809.60 = 988,589,859.20/x - Step 3: Cross multiply
1,726,277,206.40x = 2,589,415,809.60 × 988,589,859.20 - Step 4: Simplify right side
1,726,277,206.40x = 2,559,870,210,622,717,952 - Step 5: Solve for x
x = 2,559,870,210,622,717,952/1,726,277,206.40 - Step 6: Final answer
x = 1,482,884,788.80
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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.