Finding the Fourth Proportional to 528,300,879.76, 792,450,263.64 and 140,162,615.44
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Solution
The fourth proportional to 528,300,879.76, 792,450,263.64 and 140,162,615.44 is: 210,243,642.99
Step by Step Solution
- Step 1: Write the proportion equation
528,300,879.76 : 792,450,263.64 = 140,162,615.44 : x - Step 2: Convert to fraction form
528,300,879.76/792,450,263.64 = 140,162,615.44/x - Step 3: Cross multiply
528,300,879.76x = 792,450,263.64 × 140,162,615.44 - Step 4: Simplify right side
528,300,879.76x = 111,071,901,557,899,936 - Step 5: Solve for x
x = 111,071,901,557,899,936/528,300,879.76 - Step 6: Final answer
x = 210,243,642.99
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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.