Finding the Fourth Proportional to 117,447,605.80, 176,171,408.70 and 87,214,517.80
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Solution
The fourth proportional to 117,447,605.80, 176,171,408.70 and 87,214,517.80 is: 130,821,776.70
Step by Step Solution
- Step 1: Write the proportion equation
117,447,605.80 : 176,171,408.70 = 87,214,517.80 : x - Step 2: Convert to fraction form
117,447,605.80/176,171,408.70 = 87,214,517.80/x - Step 3: Cross multiply
117,447,605.80x = 176,171,408.70 × 87,214,517.80 - Step 4: Simplify right side
117,447,605.80x = 15,364,704,459,917,224 - Step 5: Solve for x
x = 15,364,704,459,917,224/117,447,605.80 - Step 6: Final answer
x = 130,821,776.70
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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.