Finding the Fourth Proportional to 2,086,311,994.80, 3,129,845,905.80 and 1,048,561,249.20
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Solution
The fourth proportional to 2,086,311,994.80, 3,129,845,905.80 and 1,048,561,249.20 is: 1,573,031,809.70
Step by Step Solution
- Step 1: Write the proportion equation
2,086,311,994.80 : 3,129,845,905.80 = 1,048,561,249.20 : x - Step 2: Convert to fraction form
2,086,311,994.80/3,129,845,905.80 = 1,048,561,249.20/x - Step 3: Cross multiply
2,086,311,994.80x = 3,129,845,905.80 × 1,048,561,249.20 - Step 4: Simplify right side
2,086,311,994.80x = 3,281,835,132,789,153,792 - Step 5: Solve for x
x = 3,281,835,132,789,153,792/2,086,311,994.80 - Step 6: Final answer
x = 1,573,031,809.70
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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.