Finding the Fourth Proportional to 115,467,987.84, 159,345,809.76 and 69,058,234.56
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Solution
The fourth proportional to 115,467,987.84, 159,345,809.76 and 69,058,234.56 is: 95,300,355.64
Step by Step Solution
- Step 1: Write the proportion equation
115,467,987.84 : 159,345,809.76 = 69,058,234.56 : x - Step 2: Convert to fraction form
115,467,987.84/159,345,809.76 = 69,058,234.56/x - Step 3: Cross multiply
115,467,987.84x = 159,345,809.76 × 69,058,234.56 - Step 4: Simplify right side
115,467,987.84x = 11,004,140,306,559,218 - Step 5: Solve for x
x = 11,004,140,306,559,218/115,467,987.84 - Step 6: Final answer
x = 95,300,355.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.