Finding the Fourth Proportional to 48,387,471,949.80, 72,581,207,924.70 and 13,490,930,125.80
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Solution
The fourth proportional to 48,387,471,949.80, 72,581,207,924.70 and 13,490,930,125.80 is: 20,236,395,188.70
Step by Step Solution
- Step 1: Write the proportion equation
48,387,471,949.80 : 72,581,207,924.70 = 13,490,930,125.80 : x - Step 2: Convert to fraction form
48,387,471,949.80/72,581,207,924.70 = 13,490,930,125.80/x - Step 3: Cross multiply
48,387,471,949.80x = 72,581,207,924.70 × 13,490,930,125.80 - Step 4: Simplify right side
48,387,471,949.80x = 979,188,004,558,288,846,848 - Step 5: Solve for x
x = 979,188,004,558,288,846,848/48,387,471,949.80 - Step 6: Final answer
x = 20,236,395,188.70
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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.