Finding the Fourth Proportional to 1,454,378,055.90, 2,181,873,847.05 and 471,728,279.58
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Solution
The fourth proportional to 1,454,378,055.90, 2,181,873,847.05 and 471,728,279.58 is: 707,691,918.17
Step by Step Solution
- Step 1: Write the proportion equation
1,454,378,055.90 : 2,181,873,847.05 = 471,728,279.58 : x - Step 2: Convert to fraction form
1,454,378,055.90/2,181,873,847.05 = 471,728,279.58/x - Step 3: Cross multiply
1,454,378,055.90x = 2,181,873,847.05 × 471,728,279.58 - Step 4: Simplify right side
1,454,378,055.90x = 1,029,251,596,129,492,608 - Step 5: Solve for x
x = 1,029,251,596,129,492,608/1,454,378,055.90 - Step 6: Final answer
x = 707,691,918.17
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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.