Finding the Fourth Proportional to 328,974,081.68, 493,457,318.18 and 79,980,749.40
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Solution
The fourth proportional to 328,974,081.68, 493,457,318.18 and 79,980,749.40 is: 119,970,199.18
Step by Step Solution
- Step 1: Write the proportion equation
328,974,081.68 : 493,457,318.18 = 79,980,749.40 : x - Step 2: Convert to fraction form
328,974,081.68/493,457,318.18 = 79,980,749.40/x - Step 3: Cross multiply
328,974,081.68x = 493,457,318.18 × 79,980,749.40 - Step 4: Simplify right side
328,974,081.68x = 39,467,086,104,950,648 - Step 5: Solve for x
x = 39,467,086,104,950,648/328,974,081.68 - Step 6: Final answer
x = 119,970,199.18
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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.