Finding the Fourth Proportional to 5,158,656,029.20, 7,737,984,043.80 and 1,281,262,493.20
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Solution
The fourth proportional to 5,158,656,029.20, 7,737,984,043.80 and 1,281,262,493.20 is: 1,921,893,739.80
Step by Step Solution
- Step 1: Write the proportion equation
5,158,656,029.20 : 7,737,984,043.80 = 1,281,262,493.20 : x - Step 2: Convert to fraction form
5,158,656,029.20/7,737,984,043.80 = 1,281,262,493.20/x - Step 3: Cross multiply
5,158,656,029.20x = 7,737,984,043.80 × 1,281,262,493.20 - Step 4: Simplify right side
5,158,656,029.20x = 9,914,388,728,301,006,848 - Step 5: Solve for x
x = 9,914,388,728,301,006,848/5,158,656,029.20 - Step 6: Final answer
x = 1,921,893,739.80
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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.