Finding the Fourth Proportional to 592,338,687.80, 888,508,031.70 and 420,151,803.80
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Solution
The fourth proportional to 592,338,687.80, 888,508,031.70 and 420,151,803.80 is: 630,227,705.70
Step by Step Solution
- Step 1: Write the proportion equation
592,338,687.80 : 888,508,031.70 = 420,151,803.80 : x - Step 2: Convert to fraction form
592,338,687.80/888,508,031.70 = 420,151,803.80/x - Step 3: Cross multiply
592,338,687.80x = 888,508,031.70 × 420,151,803.80 - Step 4: Simplify right side
592,338,687.80x = 373,308,252,209,542,592 - Step 5: Solve for x
x = 373,308,252,209,542,592/592,338,687.80 - Step 6: Final answer
x = 630,227,705.70
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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.