Finding the Fourth Proportional to 706,387,607.44, 974,805,376.61 and 393,121,738.37
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Solution
The fourth proportional to 706,387,607.44, 974,805,376.61 and 393,121,738.37 is: 542,502,699.93
Step by Step Solution
- Step 1: Write the proportion equation
706,387,607.44 : 974,805,376.61 = 393,121,738.37 : x - Step 2: Convert to fraction form
706,387,607.44/974,805,376.61 = 393,121,738.37/x - Step 3: Cross multiply
706,387,607.44x = 974,805,376.61 × 393,121,738.37 - Step 4: Simplify right side
706,387,607.44x = 383,217,184,228,765,568 - Step 5: Solve for x
x = 383,217,184,228,765,568/706,387,607.44 - Step 6: Final answer
x = 542,502,699.93
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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.