Finding the Fourth Proportional to 586,081,765.20, 879,122,647.80 and 149,381,605.20
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Solution
The fourth proportional to 586,081,765.20, 879,122,647.80 and 149,381,605.20 is: 224,072,407.80
Step by Step Solution
- Step 1: Write the proportion equation
586,081,765.20 : 879,122,647.80 = 149,381,605.20 : x - Step 2: Convert to fraction form
586,081,765.20/879,122,647.80 = 149,381,605.20/x - Step 3: Cross multiply
586,081,765.20x = 879,122,647.80 × 149,381,605.20 - Step 4: Simplify right side
586,081,765.20x = 131,324,752,296,038,224 - Step 5: Solve for x
x = 131,324,752,296,038,224/586,081,765.20 - Step 6: Final answer
x = 224,072,407.80
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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.