Finding the Fourth Proportional to 51,001,642.94, 70,383,914.67 and 28,974,742.08
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Solution
The fourth proportional to 51,001,642.94, 70,383,914.67 and 28,974,742.08 is: 39,986,079.99
Step by Step Solution
- Step 1: Write the proportion equation
51,001,642.94 : 70,383,914.67 = 28,974,742.08 : x - Step 2: Convert to fraction form
51,001,642.94/70,383,914.67 = 28,974,742.08/x - Step 3: Cross multiply
51,001,642.94x = 70,383,914.67 × 28,974,742.08 - Step 4: Simplify right side
51,001,642.94x = 2,039,355,774,143,978.25 - Step 5: Solve for x
x = 2,039,355,774,143,978.25/51,001,642.94 - Step 6: Final answer
x = 39,986,079.99
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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.