Finding the Fourth Proportional to 768,349,553.76, 1,060,324,920.72 and 415,925,448.48
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Solution
The fourth proportional to 768,349,553.76, 1,060,324,920.72 and 415,925,448.48 is: 573,978,491.99
Step by Step Solution
- Step 1: Write the proportion equation
768,349,553.76 : 1,060,324,920.72 = 415,925,448.48 : x - Step 2: Convert to fraction form
768,349,553.76/1,060,324,920.72 = 415,925,448.48/x - Step 3: Cross multiply
768,349,553.76x = 1,060,324,920.72 × 415,925,448.48 - Step 4: Simplify right side
768,349,553.76x = 441,016,118,184,986,496 - Step 5: Solve for x
x = 441,016,118,184,986,496/768,349,553.76 - Step 6: Final answer
x = 573,978,491.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.